ASTM A307 Grade B Hex Bolts A307 Hex Bolts Nut ASTM A563 a

• Customization: Available
• Material: High Strength Steel
• Type: Hexagon Head
• Model NO.: A307 Hex Bolts
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, JIS, GOST
• Grade: 8.8
• Application: Machinery
• Finish: Polishing
• Specific Material: ASTM A307 Grade A Grade B Hex Bolt
• Transport Package: Plywood Box, Plywood Case, Wooden Pallet
• Specification: A307
• Trademark: C&N
• Origin: China
• Production Capacity: 1000tons/Month

Product Description

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.
A307 Grades
 

A		Headed bolts, threaded rods and bent bolts intended for general applications.
B		Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges.
C*		Nonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will be painted green for identification purposes. Permanent marking is a supplemental requirement.

A307 Mechanical Properties
 

Grade	Tensile, ksi	Yield, min, ksi	Elong %, min
A	60 min	--	18
B	60 - 100	--	18
C*	58 - 80	36	23

A307 Chemical Properties
 

Element	Grade A	Grade B
Carbon, max	0.29%	0.29%
Manganese, max	1.20%	1.20%
Phosphorus, max	0.04%	0.04%
Sulfur, max	0.15%	0.05%

A307 Recommended Hardware
 

Nuts	Washers
A307 Grades A & C*	A307 Grade B
1/4 - 1-1/2	1-5/8 - 4	1/4 - 4
A563A Hex	A563A Heavy Hex	A563A Heavy Hex	F844