... Screws Grade 8 1.Standard: ASME B 18.2.1 2. Size: 1/4''-3'' 3. ISO9001:2008 Hex Head Cap Screws (Partial Threaded) Standard ... following: Bolts: Hex Bolts, T-head bolts, Hex Tap Bolts, Hex Cap Screws, hex tap bolts, Heavy Hex Bolts, Square Bolts, Step Bolts, Hex Lag Screw, Carriage Bolts, Stud Bolt, U-Bolt, Eye Bolts, Hook Bolts, etc ...