Technicals: Spring Tension Slotted Pins

Selok Roll Pin/ Spring Pin/ Tension Pin Description

A slotted spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Sellock roll pins have a body diameter which is larger than the hole diameter, and a chamfer on either one or both ends to facilitate starting the pin into the hole. The spring action of the pin allows it to compress as it assumes the diameter of the hole as it is struck with a hammer into the hole. The radial force exerted by the pin against the hole wall retains it in the hole, therefore a spring pin is considered a self-retaining fastener. Spring pins are designed for use in double shear applications.

Heavy Duty

Light Duty

Inch Selok Slotted Roll Tension Pin 

Inch Diameters Available

1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4"

Inch Selok Slotted Roll Tension Pin Dimensions Chart

 

Metric Spring Tension Pin Slotted Light Duty DIN 7346

Metric Light Duty Slotted Spring Pin Diameters Available (mm)

2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 13, 14, 16, 18, 20, 21, 25, 28, 30, 32, 35, 38, 40, 45, 50

Metric Spring Tension Pin Slotted Light Duty DIN 7346
Dimensions Chart 

 

 

Metric Heavy Duty Slotted Spring Pin Diameters Available (mm)

1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 13, 14, 16, 18, 20, 21, 25, 28, 30, 32, 35, 38, 40, 45, 50

 Metric Spring Tension Pin Slotted Heavy Duty DIN 1481 Dimensions Chart