Zinc plating for corrosion resistance. Thread Size: 1/4-20. Head Diameter: .625. Head Thickness: .073. Overall Length: .919. External Body Diameter: .438. Per package of 25. SKU: 42559742 MFG: 37025 Shop more products by Imperial. Get best discount deals on heavy duty hardware tools. Your one-stop shop for buying Nuts, Bolts, Screws & Fasteners SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping charges calculated at checkout. Shipping not available to AK,AE,AA,AE,AE,AE,AP,GU,HI,PR,VI Sold out $2.50 Quantity Sold Out Sold out Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Zinc plating for corrosion resistance Thread Size: 1/4-20 Head Diameter: .625 Head Thickness: .073 Overall Length: .919 External Body Diameter: .438 Use 7/16" dril bit to drill hole Per package of 25 FEATURES MFR: 37025 SKU: 42559742 Brand: Imperial