Quality Materials: 621-piece SAE Grade 8 hex bolts, nuts and washers are made of high-quality alloy steel and are rugged enough to withstand harsh conditions.
Set Contains:1/4-20, 5/16-18, 3/8-16 Size from 1/4-20 x1/2" to 1-1/2", 5/16-18 x 3/4" to 2", 3/8-16 x 3/4" to 2"Package includes 180pcs SAE hex bolts, 147PCS hex nut, 147PCS washers, 147PCS washers lock. Total is 621PCS.
Rugged Packaging:heavy-duty locking steel 21-hole tray holds all nuts and bolts to prevent damage and comes with all size labels (dimensions: 13-3/8 inches long x 2 inches high x 7-3/4 inches wide)
Variety of Applications: Bolt and nut sets are widely used in machinery, furniture, automotive and motorcycle repair, and DIY design.
Mounting Tool:We will supply 1 additional Y-wrench and 3 different sizes of drill bits. They fit all sizes in the kit.