7/32" x 5/8" Roll Pin / Spring Pin / Tension Pin (1 to 100 Pins) by X1 Tools: Amazon.com: Industrial & Scientific
50pcs) Metric DIN 1481 M10X32 Spring Tension Pin Steel - Heat Treated 42 to 52 HRC Ships Free in USA by Aspen Fasteners, ASMM2957: Amazon.com: Industrial & Scientific
1 1/8 in Grabber Acoustical Tension Pin - 50 lb at Capitol Materials, Inc.
Roll Pins: 3/32 X 7/16 SPRING TENSION PIN
1/8 X 3/8 420 STAINLESS TENSION PIN - Anzor Fasteners