China GB standard square head bolts Manufacturers Factory Suppliers
Non-Standard Fasteners ( 39 ) Set Screws ( 17 ) Screws ( 59 ) Self Tapping Screws ( 18 ) Machine Screws ( 33 ) Self Drilling Screws ( 8 ) Bolt ( 146 ) T&Square Bolt ( 30 ) Hex Bolt ( 19 ) Carriage...
Hardness. Bolts of a length less than 3 times diameter: Rockwell B69-100. Bolts of a length 3 times diameter and longer: Rockwell B100 maximum. Tensile Strength. 60,000 psi. minimum. Elongation in 2...
Standard Measurement System; Square & Hex Head Bolts: ANSI/ASME B18.2.1: Inch Series: Hex Head Bolts: ANSI/ASME B18.2.3.5M: Metric: Heavy Hex Bolts: ANSI/ASME B18.2.3.6M: ... Countersunk Square Head...
ASTM A307 Grade A Square Head Bolts are a low or medium carbon steel, externally threaded bolt, 1/4" diameter or larger, with a trimmed square shaped external wrenching head. Square head bolts were...
Square Headed Bolts are commonly used in new construction across with taper washers and square plate washer. Its design allows a simple pull grip for nut tightening. Square Head Coach...
Carriage bolts are divided into semi-round head carriage bolts according to the size of the head (corresponding to standard GB/T14 and DIN603), small semi-round head carriage bolts...
















