HDG ASTM A325tc Torsional Shear Bolt / American Standard Torsional Shear Type High Strength Bolt/Black/Hot DIP Galvanized Bolt Inventory

• Customization: Available
• Material: High Strength Steel
• Type: Round Head
• Model NO.: 1-1/2 2-1/2 2 3/4 2-1/4 3-1/4
• Connection: Hinged Bolts
• Head Style: Round
• Standard: DIN, ANSI, GB, JIS
• Grade: 4.8/5.8/6.8/8.8/10.9s/12.9s
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Black/HDG
• Material Selection: A325CT/Alloy Steel: 40cr/42CrMo/B7/35CrMo
• Criterion: ASTM/GB
• Transport Package: Export Packing
• Specification: M1"-M7/8
• Trademark: SANJU
• Origin: Hebei
• HS Code: 7318159001
• Production Capacity: 50000

Product Description

Please consult customer service for detailed specifications. 
Hot-dip galvanized torsional shear bolt and black torsional shear bolt sizes can be customized.
Your enquiry is welcome. Thanks dear. 
American standard A325TC shear bolt size specification table:

M1"*2-3/4"	M3/4*2-1/2	M7/8*2-1/2"	M1/2*1 1/2                         M7/8"*2 1/2"
M1*2"	M3/4*2"	M7/8*2"	M1*2 3/4                             M7/8"*2 1/4"
M1"*2-3/4	M3/4"*3-1/4"	M7/8"*2-1/4"	M3/4*2 1/2                         M7/8"*2"
M1"*3-1/4	M5/8"*1-1/2"	M7/8*2-1/4	M3/4*2                               M7/8"*3"
M1/2"*1-1/2	M5/8*1-3/4	M5/8*1 1/2	M5/8*1 3/4                         M3/4"*3"

High strength torsional shear bolt, specification M24*85, material 10.9S

10.9S refers to the strength level

Torsional shear bolts can be divided into initial tightening and final tightening. The initial tightening can be carried out with torque wrench or impact wrench, and the final tightening must be carried out with torsional shear wrench.

The torsional shear bolts are M16 M20 M22 M24 M27 M30 and other national standard bolts

The torsional shear bolts,The length varies from 50 to 130

Different types of bolts need different types of torsional shear wrenches. Generally, the larger the bolt, the slower the speed, and the bolt after the initial tightening is faster than the direct final tightening.

Torsional shear type high strength bolt, why screw off the plum head?

High strength torsional shear bolts must be installed with electric torque wrench. Only when the torque meets the requirements, the plum head of the high strength bolt will be unscrewed, so as to ensure that the bolt used can reach the necessary preload to ensure the performance.

So in the project, we can determine whether the high-strength bolt plays a role by checking whether the plum head is still in, and the high-strength torsional shear bolts are disposable for this reason.
China national standard torsional shear bolt size table:

nominal diameter d			M16	M20	M22		M24	M27	M30
Thread distance p			2	2.5	2.5		3	3	3.5
dk  max			30	37	41		44	50	55
k	Nominal		10	13	14		15	17	19
	max		10.75	13.9	14.9		15.9	17.9	20.05
	max		9.25	12.1	13.1		14.1	16.1	17.95
Z	min		17	19	21		23	24	25
dp	Nominal		11.1	13.9	15.4		16.7	19	21.1
	max		11.3	14.1	15.6		16.9	19.3	21.4
	min		11	13.8	15.3		16.6	18.7	20.8