Utility Self Locking "SL" Connecting Pins

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Economy Connecting Pins

Part # 277B84

Type "SL" connecting pins are a Bell System design and feature a swivel lock which is held in place by a spring loaded detent ball. They are advantageous over using a pin and separate clip or hair pin arrangement for locking. Actual dimension (working length) of the distance from under the head to the swivel lock is 1/8" longer than nominal dimension. The pin bodies and components are zinc plated per ASTM B633 to protect them from rust and corrosion.

Type "SL" Sizes
1/2" x 1" 1/2" x 4" 5/8" x 1" 5/8" x 4"
1/2" x 1-1/2" 1/2" x 4-1/2" 5/8" x 1-1/2" 5/8" x 4-1/2"
1/2" x 2" 1/2" x 5" 5/8" x 2" 5/8" x 5"
1/2" x 2-1/2" 1/2" x 6" 5/8" x 2-1/2" 5/8" x 6"
1/2" x 3" 1/2" x 7" 5/8" x 3" 5/8" x 7"
1/2" x 3-1/2" 1/2" x 8" 5/8" x 3-1/2" 5/8" x 8"
Lengths given are measurements between shoulder and lock, plus 1/8" clearance.