ODM Manufacturer China Hex Allen Socket Knurled Head Cap Machine Screw

We can normally fulfill our respected consumers with our great excellent, great value and good provider due to we're much more specialist and extra hard-working and do it in cost-effective way for ODM Manufacturer China Hex Allen Socket Knurled Head Cap Machine Screw, Welcome to visit us at any time for organization marriage established. We can normally fulfill our respected consumers with our great excellent, great value and good provider due to we're much more specialist and extra hard-working and do it in cost-effective way for China Stainless Steel Bolt, Stainless Steel Screw, Meanwhile, we're building up and consummating triangle market & strategic cooperation in order to achieve a multi-win trade supply chain to expand our market vertically and horizontally for a brighter prospects. development. Our philosophy is to create cost-effective merchandise, promote perfect services, cooperate for long-term and mutual benefits, firm a in depth mode of excellent suppliers system and marketing agents, brand strategic cooperation sales system.

ASTM A307 Grade A Hex Bolts Hex Cap Screws

Standard: ASME B18.2.1

(Various types of configuration are also available)

Thread Size: 1/4”-4” with various lengths

Grade: ASTM A307 Grade A

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A307

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. *As of August 2007, grade C has been replaced by specification F1554 grade 36. We will continue to supply grade C, if required by the project.

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

Testing Lab

Workshop

Warehouse

We can normally fulfill our respected consumers with our great excellent, great value and good provider due to we're much more specialist and extra hard-working and do it in cost-effective way for ODM Manufacturer China Hex Allen Socket Knurled Head Cap Machine Screw, Welcome to visit us at any time for organization marriage established. ODM Manufacturer China Stainless Steel Bolt, Stainless Steel Screw, Meanwhile, we're building up and consummating triangle market & strategic cooperation in order to achieve a multi-win trade supply chain to expand our market vertically and horizontally for a brighter prospects. development. Our philosophy is to create cost-effective merchandise, promote perfect services, cooperate for long-term and mutual benefits, firm a in depth mode of excellent suppliers system and marketing agents, brand strategic cooperation sales system.