Greater resistance to high temperature. Zinc; yellow plating for corrosion resistance. Greater resistance to loosening from vibration. Per package of 500. SKU: 42612743 MFG: 76170 Shop more products by Imperial. We offer lowest price on Nuts, Bolts, Screws & Fasteners. With Life and Home you always get the best deals SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping not available to AK,AE,AA,AE,AE,AE,AP,GU,HI,PR,VI Free shipping over $35 Sold out $0.04 Quantity Sold Out Sold out Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Size : 1/4" Tempered for non-linking positive locking Greater resistance to high temperature Not brittle at low temperature Zinc; yellow plating for corrosion resistance Greater resistance to loosening from vibration Tighter assemblies due to greater bolt tension per unit of torque SAE approved alloy coil spring steel ASME B18.21.1 approved ASTM B633 Type II SC1 Per package of 500 FEATURES MFR: 76170 SKU: 42612743 Brand: Imperial