McMaster 91257A640 Zinc Yellow Chromate Plated Hex Head Screw, Grade 8 Steel, 3 8" 16 Thread, 4" Long, Partially Threaded, Pack of 10 EC 3101 Socket Point Styles Included 6 Socket Point Styles Included 6 Features Side Locking Hole Impact Rated Yes Material Alloy Steel Insulated No Number of Standard Sockets 21 Piece Count Range 2 to 25 Compatible Fastener Type Bolts Non Sparking No Socket Shape 6 Point Includes Deep Sockets No Container Type None Locking Yes Non Magnetic No Tether Ready No Includes Standard Sockets Yes Includes Drive Tools No Charger Barrel Color Silver Barrel Material Steel Overall Length 19 in Bulk Capacity 16 oz Cartridge Capacity 14 oz Flexible Hose Length 30 in 225 7009) Export Control Classification Number (ECCN) EAR99 REACH Compliance REACH (EC 1907 2006) (01 21 2025 These have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive