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A metric buttress thread is a type of thread, often used in applications requiring high loads in one direction. It's characterized by a non-symmetric profile, with one face of the thread being essentially perpendicular to the screw axis, while the other is angled. This design allows the thread to handle axial thrust effectively, making it suitable for applications like vises, screw-type breechblocks in artillery, and hydraulic machines. Key Features and Characteristics:Non-Symmetric Profile:The most distinguishing feature of a metric buttress thread is its asymmetry. One face of the thread is typically perpendicular or at a slight angle to the screw axis, while the other is angled (often at 45°).Load Handling in One Direction:Buttress threads are designed to handle axial loads (forces pushing along the screw axis) primarily in one direction.High Load Capacity:The long thread base and perpendicular load-bearing face contribute to high shear strength, making buttress threads suitable for applications with high loads.Low Friction:Like square threads, buttress threads offer low friction properties.Easy to Machine:Compared to square threads, buttress threads are easier to machine on a thread milling machine.Compensating for Wear:Buttress threads, like trapezoidal Acme threads, can compensate for nut wear using a split nut. Applications:Construction of Artillery: Buttress threads are frequently used in screw-type breechblocks in artillery. Vises and Screw Jacks: Their ability to handle high loads in one direction makes them suitable for vises and screw jacks. Transmission Devices: They are used in transmission devices where high forces are required in one direction. Hydraulic Machines: Buttress threads find application in hydraulic machines. Lifting Systems: They are used in lifting systems for heavy objects. Motion Threads: Buttress threads can be used as motion threads in tools, collets, and other machinery. Standards and Specifications:DIN 513: This standard specifies the basic dimensions and tolerances for metric buttress threads. IS 4696-3 (2004): This Indian Standard provides dimensions for metric buttress threads. ANSI/ASME B1.9: This American standard specifies the 7°/45° thread profile. B.S 1657: This British standard specifies both 7°/45° and 0°/52° thread profiles. 
Metric Buttress Thread
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An ANSI buttress thread is a type of screw thread profile defined by the American National Standards Institute (ANSI). It's characterized by a non-symmetrical, sawtooth-like shape, with one side angled and the other relatively flat, designed for high-strength applications where force is primarily applied in one direction. Here's a more detailed explanation:Key Features of ANSI Buttress Threads:Asymmetrical Profile:One side of the thread is flat, acting as a bearing surface, while the other side is angled, typically at a 45-degree angle. Single Direction Force:Buttress threads are specifically designed to handle high axial thrust (force) in one direction, making them suitable for applications where one-way load is a primary concern. High Load Capacity:The flat, bearing surface provides a large contact area, enabling buttress threads to withstand significant loads in the intended direction. Efficiency and Friction:They offer high efficiency, comparable to square threads, in the bearing direction, and low friction in that direction. Easier to Manufacture:Compared to square threads, buttress threads are easier to manufacture. Uses of ANSI Buttress Threads:High-Strength Applications:They are commonly used in situations requiring high load capacity and force in a single direction, such as in breechblocks of artillery. Leadscrews:Buttress threads are suitable for leadscrews, where one-directional thrust is a critical requirement. Specialized Applications:They can also be found in applications like oil and gas casing, where the thread profile provides strength and resistance to galling. 
ANSI Buttress Thread
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Pin gauges (also known as gauge pins or plug gauges) are precision tools used to measure the diameter or size of holes, slots, and openings. They are commonly used in machining, toolmaking, and quality control environments.Key Features:Material: Usually made of hardened steel or carbide for durability and precision.Tolerance: Available in different tolerance classes (e.g., Class ZZ, Class Z, Class Y, Class X).Sizes: Come in sets with sizes typically ranging from 0.011 inches to 1.000 inches (or metric equivalents).Types:Go/No-Go Pin Gauges: Two pins are used—one that should fit (Go) and one that shouldn't (No-Go).Taper Lock or Double Ended: Some are single-ended, others double-ended with Go and No-Go ends.Common Uses:Checking hole sizesMeasuring slot widthsVerifying dimensions in precision engineeringCalibrating measuring equipment
Pin Gauge
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Master Metrology Pvt Ltd are recognised as one of the top most manufactur of Plain Plug Gauge in Pune , Maharashtra and all over. A plain plug gauge is a precision measuring tool used in engineering and manufacturing to check the dimensional accuracy of holes or bores in machined parts. It ensures that the diameter of a hole is within specified tolerance limits.Key Features:Cylindrical in shapeMade of hardened steel or carbideUsually comes in GO and NO-GO ends:GO end: Should fit into the hole (verifies minimum limit)NO-GO end: Should not fit (verifies maximum limit)Types:Taper plug gaugeThread plug gaugePlain plug gauge (used for non-threaded holes)Common Uses:Quality control in machiningEnsuring parts fit correctly in assembliesFast inspection in mass production
Plain Plug Gauge
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A width gauge is a measuring tool used to determine the width of an object or space. It comes in various forms depending on the specific application. Here are a few types:Feeler Gauge – Often used to measure small gaps or clearances, including widths.Vernier Caliper – Measures internal and external widths with high precision.Go/No-Go Gauge – Checks whether the width falls within specified tolerances.Digital Width Gauge – Used in industrial applications for fast, accurate width readings.Rail Width Gauge – Specifically used to measure the distance between railway tracks.
Width Gauges
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RING GAUGES AND MASTER SETTING RINGSWe manufacture Ring Gauges in GO-NOGO Pairs as well as single mastersetting rings to specified nominal sizes.>>MATERIAL•Steel dia: 1mm to 450mm•Carbide dia: 2mm to 60mm>>FEATURES•Made from AISI001 Special tool steel (OHNS With Tungsten) and submicron Tungsten Carbide.•Stabilised and sub-zero treated (-80deg C) for better dimension retention and wear resistance.•Calibrated on CarlZzeiss/ Octagon-Heidenhain Universal length measuring machine (NABL).•Actual dimension are laser marked on master setting rings.
Ring Gauge And Master Setting Ring
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Snap Gauge and Gap Gauge are both types of limit gauges used in mechanical inspection to check dimensions of parts quickly and efficiently without requiring precise measurement. Here's a breakdown of each:1. Snap Gauge:Purpose:Used to check the external dimensions (like the diameter or thickness) of a part.Structure:Has a
Snap Gauge and Gap Gauge
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A slip gauge (also known as a gauge block or Jo block) is a precision tool used in mechanical engineering and metrology to measure lengths accurately. It's widely used for calibrating measuring equipment and for precision measurement tasks.Key Features of Slip Gauges:Made of: High-grade steel, ceramic, or tungsten carbide.High precision: Tolerances can be within millionths of a meter.Wringing property: When two slip gauges are slid and pressed together, they stick due to molecular adhesion, creating a near-zero gap.Available in sets: Standard sets come with multiple blocks of various thicknesses.Applications:Calibrating micrometers, calipers, and other measuring tools.Setting precise distances in machining and tooling.Comparing the accuracy of other gauge tools.
Slip Gauge
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Air Plug Gauges and Pneumatic Setting Rings are precision tools used in metrology, especially for checking internal dimensions (like bore diameters) with high accuracy and repeatability. Here’s a quick breakdown:1. Air Plug Gauges:Purpose: Used to measure internal diameters of bores with high precision.Working Principle: Based on the air displacement principle. Compressed air flows through jets on the plug; changes in back pressure (caused by proximity to the bore surface) indicate size deviations.Types:2-jet and 3-jet configurations (depending on number of measuring points).Advantages:Non-contact measurement (reduces wear).High precision and repeatability.Ideal for production environments.Applications: Common in automotive, aerospace, and precision manufacturing.2. Pneumatic Setting Rings:Purpose: Used to calibrate or set the air plug gauges.Made of: High-grade steel or ceramic for dimensional stability.Function: They simulate the bore size that needs to be measured and help in setting the zero/reference point for the air gauge.Types:Master Setting Rings (for zero setting).Check Rings (for span or second-point verification).
Air Plug Gauges and Pneumatic Setting
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An Air Ring Gauge and a Setting Plug are precision measurement tools used primarily in high-accuracy dimensional inspection, especially for checking external diameters like shafts.1. Air Ring GaugeIt is a non-contact, air-based measuring tool used to check the external dimensions (OD) of cylindrical parts.The gauge has small air jets that emit air when connected to an air supply and a differential pressure system.As a part (e.g., a shaft) is inserted into the ring, the air back-pressure changes depending on the size of the part.The gap between the part and the ring’s inner diameter determines the airflow, which is measured and translated into dimensional data.Highly used in automotive, aerospace, and precision manufacturing where fast, repeatable, and non-contact measurement is critical.2. Setting PlugA Setting Plug is a master or reference piece used to calibrate the air ring gauge.It is a high-precision cylindrical plug with a known and certified diameter.You insert the setting plug into the air ring to set zero or establish reference points (e.g., Go/No-Go limits) on the display.Usually made from hardened steel or carbide to resist wear and maintain dimensional integrity.How They Work TogetherFirst, you insert the Setting Plug into the Air Ring Gauge to calibrate or zero the system.Then, production parts are measured using the now-calibrated Air Ring Gauge for quick, accurate, and repeatable measurements.
Air Ring Gauge And Setting Plug
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These air calipers are used to measure outer diameter of rigidly held jobs viz cylindrical ground jobs, crankshaft grinding, Rest pads made out of tungsten carbide enhance life. Special jetted air snap to check 'crowning effect' on crankshaft dia can be manufactured.Master Metrology Pvt Ltd is one of the leading and best Air Snap Gauge/ Air Caliper manufacturer in Pune, Maharashtra and provides a quality service all over the India
Air Snap Gauge/ Air Caliper
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Air electronic column and digital displays are microprocessor based measuring instruments which easily segregate components into three categories of OK, Rework and Reject.With the change in size there is change in back pressure sensed by the converter. The converter translate this change into linear displacement. The air probes used in the column convert this displacement into digital signal which is shown by the instrument in the form of bar graph and/or seven segment display.>>FEATURES•The readings can be directly sent to the computer using a foot switch.•No need to write down any reading thus eliminating any chance of manipulation/error.
Air Electronic Column And Digital Disp
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A metric buttress thread is a type of thread, often used in applications requiring high loads in one direction. It's characterized by a non-symmetric profile, with one face of the thread being essentially perpendicular to the screw axis, while the other is angled. This design allows the thread to handle axial thrust effectively, making it suitable for applications like vises, screw-type breechblocks in artillery, and hydraulic machines. Key Features and Characteristics:Non-Symmetric Profile:The most distinguishing feature of a metric buttress thread is its asymmetry. One face of the thread is typically perpendicular or at a slight angle to the screw axis, while the other is angled (often at 45°).Load Handling in One Direction:Buttress threads are designed to handle axial loads (forces pushing along the screw axis) primarily in one direction.High Load Capacity:The long thread base and perpendicular load-bearing face contribute to high shear strength, making buttress threads suitable for applications with high loads.Low Friction:Like square threads, buttress threads offer low friction properties.Easy to Machine:Compared to square threads, buttress threads are easier to machine on a thread milling machine.Compensating for Wear:Buttress threads, like trapezoidal Acme threads, can compensate for nut wear using a split nut. Applications:Construction of Artillery: Buttress threads are frequently used in screw-type breechblocks in artillery. Vises and Screw Jacks: Their ability to handle high loads in one direction makes them suitable for vises and screw jacks. Transmission Devices: They are used in transmission devices where high forces are required in one direction. Hydraulic Machines: Buttress threads find application in hydraulic machines. Lifting Systems: They are used in lifting systems for heavy objects. Motion Threads: Buttress threads can be used as motion threads in tools, collets, and other machinery. Standards and Specifications:DIN 513: This standard specifies the basic dimensions and tolerances for metric buttress threads. IS 4696-3 (2004): This Indian Standard provides dimensions for metric buttress threads. ANSI/ASME B1.9: This American standard specifies the 7°/45° thread profile. B.S 1657: This British standard specifies both 7°/45° and 0°/52° thread profiles. 
View Details
Metric Buttress Thread
An ANSI buttress thread is a type of screw thread profile defined by the American National Standards Institute (ANSI). It's characterized by a non-symmetrical, sawtooth-like shape, with one side angled and the other relatively flat, designed for high-strength applications where force is primarily applied in one direction. Here's a more detailed explanation:Key Features of ANSI Buttress Threads:Asymmetrical Profile:One side of the thread is flat, acting as a bearing surface, while the other side is angled, typically at a 45-degree angle. Single Direction Force:Buttress threads are specifically designed to handle high axial thrust (force) in one direction, making them suitable for applications where one-way load is a primary concern. High Load Capacity:The flat, bearing surface provides a large contact area, enabling buttress threads to withstand significant loads in the intended direction. Efficiency and Friction:They offer high efficiency, comparable to square threads, in the bearing direction, and low friction in that direction. Easier to Manufacture:Compared to square threads, buttress threads are easier to manufacture. Uses of ANSI Buttress Threads:High-Strength Applications:They are commonly used in situations requiring high load capacity and force in a single direction, such as in breechblocks of artillery. Leadscrews:Buttress threads are suitable for leadscrews, where one-directional thrust is a critical requirement. Specialized Applications:They can also be found in applications like oil and gas casing, where the thread profile provides strength and resistance to galling. 
View Details
ANSI Buttress Thread
Pin gauges (also known as gauge pins or plug gauges) are precision tools used to measure the diameter or size of holes, slots, and openings. They are commonly used in machining, toolmaking, and quality control environments.Key Features:Material: Usually made of hardened steel or carbide for durability and precision.Tolerance: Available in different tolerance classes (e.g., Class ZZ, Class Z, Class Y, Class X).Sizes: Come in sets with sizes typically ranging from 0.011 inches to 1.000 inches (or metric equivalents).Types:Go/No-Go Pin Gauges: Two pins are used—one that should fit (Go) and one that shouldn't (No-Go).Taper Lock or Double Ended: Some are single-ended, others double-ended with Go and No-Go ends.Common Uses:Checking hole sizesMeasuring slot widthsVerifying dimensions in precision engineeringCalibrating measuring equipment
View Details
Pin Gauge
Master Metrology Pvt Ltd are recognised as one of the top most manufactur of Plain Plug Gauge in Pune , Maharashtra and all over. A plain plug gauge is a precision measuring tool used in engineering and manufacturing to check the dimensional accuracy of holes or bores in machined parts. It ensures that the diameter of a hole is within specified tolerance limits.Key Features:Cylindrical in shapeMade of hardened steel or carbideUsually comes in GO and NO-GO ends:GO end: Should fit into the hole (verifies minimum limit)NO-GO end: Should not fit (verifies maximum limit)Types:Taper plug gaugeThread plug gaugePlain plug gauge (used for non-threaded holes)Common Uses:Quality control in machiningEnsuring parts fit correctly in assembliesFast inspection in mass production
View Details
Plain Plug Gauge
A width gauge is a measuring tool used to determine the width of an object or space. It comes in various forms depending on the specific application. Here are a few types:Feeler Gauge – Often used to measure small gaps or clearances, including widths.Vernier Caliper – Measures internal and external widths with high precision.Go/No-Go Gauge – Checks whether the width falls within specified tolerances.Digital Width Gauge – Used in industrial applications for fast, accurate width readings.Rail Width Gauge – Specifically used to measure the distance between railway tracks.
View Details
Width Gauges
RING GAUGES AND MASTER SETTING RINGSWe manufacture Ring Gauges in GO-NOGO Pairs as well as single mastersetting rings to specified nominal sizes.>>MATERIAL•Steel dia: 1mm to 450mm•Carbide dia: 2mm to 60mm>>FEATURES•Made from AISI001 Special tool steel (OHNS With Tungsten) and submicron Tungsten Carbide.•Stabilised and sub-zero treated (-80deg C) for better dimension retention and wear resistance.•Calibrated on CarlZzeiss/ Octagon-Heidenhain Universal length measuring machine (NABL).•Actual dimension are laser marked on master setting rings.
View Details
Ring Gauge And Master Se
Snap Gauge and Gap Gauge are both types of limit gauges used in mechanical inspection to check dimensions of parts quickly and efficiently without requiring precise measurement. Here's a breakdown of each:1. Snap Gauge:Purpose:Used to check the external dimensions (like the diameter or thickness) of a part.Structure:Has a
View Details
Snap Gauge and Gap Gauge
A slip gauge (also known as a gauge block or Jo block) is a precision tool used in mechanical engineering and metrology to measure lengths accurately. It's widely used for calibrating measuring equipment and for precision measurement tasks.Key Features of Slip Gauges:Made of: High-grade steel, ceramic, or tungsten carbide.High precision: Tolerances can be within millionths of a meter.Wringing property: When two slip gauges are slid and pressed together, they stick due to molecular adhesion, creating a near-zero gap.Available in sets: Standard sets come with multiple blocks of various thicknesses.Applications:Calibrating micrometers, calipers, and other measuring tools.Setting precise distances in machining and tooling.Comparing the accuracy of other gauge tools.
View Details
Slip Gauge
Air Plug Gauges and Pneumatic Setting Rings are precision tools used in metrology, especially for checking internal dimensions (like bore diameters) with high accuracy and repeatability. Here’s a quick breakdown:1. Air Plug Gauges:Purpose: Used to measure internal diameters of bores with high precision.Working Principle: Based on the air displacement principle. Compressed air flows through jets on the plug; changes in back pressure (caused by proximity to the bore surface) indicate size deviations.Types:2-jet and 3-jet configurations (depending on number of measuring points).Advantages:Non-contact measurement (reduces wear).High precision and repeatability.Ideal for production environments.Applications: Common in automotive, aerospace, and precision manufacturing.2. Pneumatic Setting Rings:Purpose: Used to calibrate or set the air plug gauges.Made of: High-grade steel or ceramic for dimensional stability.Function: They simulate the bore size that needs to be measured and help in setting the zero/reference point for the air gauge.Types:Master Setting Rings (for zero setting).Check Rings (for span or second-point verification).
View Details
Air Plug Gauges and Pneu
An Air Ring Gauge and a Setting Plug are precision measurement tools used primarily in high-accuracy dimensional inspection, especially for checking external diameters like shafts.1. Air Ring GaugeIt is a non-contact, air-based measuring tool used to check the external dimensions (OD) of cylindrical parts.The gauge has small air jets that emit air when connected to an air supply and a differential pressure system.As a part (e.g., a shaft) is inserted into the ring, the air back-pressure changes depending on the size of the part.The gap between the part and the ring’s inner diameter determines the airflow, which is measured and translated into dimensional data.Highly used in automotive, aerospace, and precision manufacturing where fast, repeatable, and non-contact measurement is critical.2. Setting PlugA Setting Plug is a master or reference piece used to calibrate the air ring gauge.It is a high-precision cylindrical plug with a known and certified diameter.You insert the setting plug into the air ring to set zero or establish reference points (e.g., Go/No-Go limits) on the display.Usually made from hardened steel or carbide to resist wear and maintain dimensional integrity.How They Work TogetherFirst, you insert the Setting Plug into the Air Ring Gauge to calibrate or zero the system.Then, production parts are measured using the now-calibrated Air Ring Gauge for quick, accurate, and repeatable measurements.
View Details
Air Ring Gauge And Setti
These air calipers are used to measure outer diameter of rigidly held jobs viz cylindrical ground jobs, crankshaft grinding, Rest pads made out of tungsten carbide enhance life. Special jetted air snap to check 'crowning effect' on crankshaft dia can be manufactured.Master Metrology Pvt Ltd is one of the leading and best Air Snap Gauge/ Air Caliper manufacturer in Pune, Maharashtra and provides a quality service all over the India
View Details
Air Snap Gauge/ Air Cali
Air electronic column and digital displays are microprocessor based measuring instruments which easily segregate components into three categories of OK, Rework and Reject.With the change in size there is change in back pressure sensed by the converter. The converter translate this change into linear displacement. The air probes used in the column convert this displacement into digital signal which is shown by the instrument in the form of bar graph and/or seven segment display.>>FEATURES•The readings can be directly sent to the computer using a foot switch.•No need to write down any reading thus eliminating any chance of manipulation/error.
View Details
Air Electronic Column An

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