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Tension Control Bolts

Twist Off Bolt Manufacturer in India


Tension Control Bolts

Tension Control Bolts

Twist Off Bolt

Twist Off Bolt

Tension Control Bolts Specification

Product name Tension Control Bolts
Standard DIN931, ISO 4017, DIN, GB5783, ANSI, ASTM, EN, JIS, AS
ISO – International Organization for Standardization ISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards
DIN Standard B.S. DIN931 DIN933 DIN912 DIN934 DIN6923 DIN603
TC Bolt Surface treatment
Passivation /plain
Size of Stainless Steel Twist Bolt M2 – M100
Diameter of SS tension Bolt M3-M60
Length of TC Bolt 6mm-500mm

Frequently Used Twist Bolts Types

A490 Tension Control Bolts

A490 Tension Control Bolts

A325 Tension Control Bolts

A325 Tension Control Bolts

Countersunk Tension Control Bolts

Countersunk Tension Control Bolts

High Strength Tension Control Bolts

High Strength Tension Control Bolts

Tension Control Structural Bolts

Tension Control Structural Bolts

5/8 Tension Control Bolts

5/8 Tension Control Bolts

Twist Off Bolt

Twist Off Bolt

Stainless Steel Tc Bolts

Stainless Steel Tc Bolts


Dimensions Of SS Twist Bolts

Diameter Stress Area in ² Tensile min lbf Proof Load min lbf Proof Load min lbf Tensile min lbf Tensile max lbf Proof Load min lbf Proof Load min
1/2" 0.142 17,050 12,050 13,050 21,300 24,600 17,050 18,500
5/8" 0.226 27,100 19,200 20,800 33,900 39,100 27,100 29,400
3/4" 0.334 40,100 28,400 30,700 50,100 57,800 40,100 43,400
7/8" 0.462 55,450 39,250 42,500 69,300 79,950 55,450 60,100
1" 0.606 72,700 51,500 55,700 90,900 104,850 72,700 78,800
1-1/8" 0.763 91,600 64,900 70,250 114,450 132,000 91,600 99,200
1-1/4" 0.969 116,300 82,400 89,200 145,350 167,650 116,300 126,000
1-3/8" 1.155 138,600 98,200 106,300 173,250 199,850 138,600 150,200
1-1/2" 1.105 168,600 119,500 129,300 210,750 243,100 168,600 182,600
Above values based on 120,000psi 85,000psi 92,000psi 150,000psi 173,000psi 120,000psi 130,000psi

ASTM F1852 TC Bolts Dimensions Chart

Diameter Height (H) Bearing Surface Diameter (D) Length of Spline (LS) Width Across Flats (S)
  Max Min Min REFERENCE ONLY REFERENCE ONLY
5/8 0.403 0.378 1.102 06 0.43
3/4 0.483 0.455 1.338 065 0.53
7/8 0.563 0.531 1.535 0.72 0.16
1 0.627 0.591 1.771 0.8 0.7
1-1/8 0.718 0.658 1.991 0.9 0.8

To Determine Bolt Length Add to Grip

Bolt Dia 0 Washers 1 Washer 2 Washers
1/2" 11/16" 55/64" 1-3/64"
5/8" 7/8" 1-1/32" 1-3/16"
3/4" 1" 1-5/32" 1-5/16"
7/8" 1-1/8" 1-9/32" 1-7/16"
1" 1-1/4" 1-13/32" 1-9/16"
1-1/8" 1-1/2" 1-21/32" 1-13/16"
1-1/4" 1-5/8" 1-25/32" 1-15/16"
1-3/8" 1-3/4" 1-29/32" 2-1/16"
1-1/2" 1-7/8" 2-1/32" 2-3/16"