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ASTM A307b GRB Heavy Hex Bolts is a ASTM A307 models.The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of the mill bolt specification often manufactured using A36 round bar. There are three grades A, B, and C* which denote tensile strength, configuration, and application. Refer to the Mechanical Properties Chart for the subtle strength differences within each grade.

DIN6923 Hex Flange Nuts provide a secure and tight fit, while also preventing the nut from loosening due to vibration. This is especially important in industries where machinery and other heavy equipment are used, as any loosening of fittings can cause dangerous and costly consequences. The flange of DIN6923 Hex Flange Nuts acts as a washer, providing additional support while preventing the nut from embedding itself into the surface of the material being fastened. This greatly reduces the risk of damage to the structure, as well as providing a more aesthetically pleasing finish.

ASTM A194-2h Heavy Hex Nuts are the most commonly used nuts in the fastener industry. ASTM A194-2h Heavy Hex Nuts are relatively strong and durable fasteners that can withstand some special industrial conditions. ASTM A194-2h Heavy Hex Nuts hardness, thickness and tensile strength enable it to withstand some extreme industrial environments.

DIN931 Heavy Hexagonal Bolt Hex Bolt are designed to endure harsh conditions and bear heavy loads, providing you with a superior level of reliability that you can count on. Made from high-grade carbon steel, our hex bolts are designed to be tough and durable. The DIN931 Heavy Hexagonal Bolt Hex Bolt ensures that the bolts can handle high pressures and stresses, while the hexagonal head of the bolts provides excellent grip and allows for easy installation with a wrench or socket.

ASTM A194-2HM Heavy Hex Nuts are the most commonly used nuts in the fastener industry.ASTM A194-2HM Heavy Hex Nuts are relatively strong and durable fasteners that can withstand some special industrial conditions. ASTM A194-2HM Heavy Hex Nuts hardness, thickness and tensile strength enable it to withstand some extreme industrial environments.

ASTM F436 Steel Structure Metal Flat Round Washer is stamped piece from, The shape is round with a hole in the middle. ASTM F436 Steel Structure Metal Flat Round Washer have a smooth bearing surface which is used under the head of a bolt, ASTM F436 Steel Structure Metal Flat Round Washer are used to reduce friction, The force is unoform, It is not easy to slip and lock in the process of rotation, and it is anti loose design, prevent leakage, isolate, prevent loosening, or distribute pressure.