Bolt Catch Roll Pin

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Pin Type Spring

End Type Plain

Head Type Plain

Shaft Type Slotted

End Shape Chamfered

System of Measurement Inch

Material 1050-1095 Spring Steel

Diameter 3/32"

Length 7/16"

For Hole Diameter 0.094"-0.097"

Wall Thickness 0.022"

Min. Hardness Rockwell C43

Breaking Strength 1,100 lbs.

Specifications Met ASME B18.8.2

RoHS RoHS 3 (2015/863/EU) Compliant

REACH REACH (EC 1907/2006) (01/16/2020, 205 SVHC) Compliant

Country of Origin United States

Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes. Once installed, they expand slightly, creating outward tension that holds them tight against the hole wall. These pins absorb shock and vibration in your system, and keep parts from loosening. They are often used as hinge pins, or to hold springs and power transmission components in place.


Install these pins into a hole slightly smaller than the pin diameter. They have at least one chamfered end, which means the end is angled to make insertion easier.


Breaking strength is measured as double shear, which is the amount of force required to break a pin into three pieces.


Steel pins are strong and wear resistant.


Pins that meet ASME B18.8.2 specifications are made to ASME standards for material and dimensions.