1/4 Inch X 2-1/2 Inch Zinc Plated Low Carbon Steel Pan Head Type-Ab Self-Tapping Sheet Metal Screw Best Seller The spring design adds constant

The spring design adds constant tension performance

NF NYL INSRT LOCNUT-JAM 1-3/8

3/8-16 X 3/4 SQ HD MACH BLT ZP

J-BOLT ZP 5/16-18X5

SC collars do not work well when th shaft is harder than set screw or when penetration marks on the shaft are not desirable

1/4 Inch X 2-1/2 Inch Zinc Plated Low Carbon Steel Pan Head Type-Ab Self-Tapping Sheet Metal Screw Best Seller The spring design adds constantPan head design is slightly rounded with minimal vertical sides. Square drive is designed to reduce the risk of stripping and allow single handed installation. Additionally reduces the ability to tamper with the fastener once installed.