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Bolts

We offer the best product range of Stainless Steel Bolts.

Stainless Steel Bolts

The Company Makes Wide Range Of Fasteners And Adding Sophisticated Machines To Cover More Range. Company Is Under Vertical Expansion To Meet The Global Demand And Growing With A Fast Pace.

.Rollfast manufacturers the complete range of stainlbess steel bolting in SS 202, SS 316 & SS 304 used in projects related to water treament, Sewage water Treatment Plants desalination plants, water equipment, for flange joints & pumps.SS 202, SS 316, SS 304 gradenuts and Bolts for the ever growing demands for water storage resevairs and projects in middle east. These bolts and nuts are used for joining Pipeless using pumps and valves.

Grade Material Similar to.. C Max MN Max P Max S Max SI Max CR NI MO
A2 / B8 AISI 304 0.08 2.00 0.05 0.030 1.00 17.00 - 20.00 8.0 - 13.0 -
A4 / B8M AISI 314 0.08 2.00 0.05 0.030 1.00 16.00 - 18.50 10.0 - 14.4 2.00 - 3.00
Grade Standard Property Class Tensile Strength Min.(N / mm2) Yield Strength 
0.2% offset Min.
(N / mm2)
Elongation After Fracture AL 
mm Min.
A2 & A4 ISO 3506 70 700 450 0.4d
    80 800 600 0.3
Grade Standard Property Class Diameter Inch. Tensile Strength MIin.(KSI) Yield Strength 0.2% Offset Min.(KSI) Elongation in 4D Min. % Reduction of Area Min % Hardness (Max.) Rockwell
B8 ASTM
A193 / 
A193M
Class 1 All 75 30 30 50 B96
Class 2 To 3/4 125 100 12 35 C35
B8M   Class 1 Over 3/4 
to 1
115 80 15 35 C35
All 75 30 30 50 B96
Class 2 To 3/4 110 96 15 15 C35
      Over 3/4 
to 1
100 80 20 45 C35
Thread ST 2.2 ST2.6 ST2.9 ST3.3 ST3.5 ST3.9 ST4.2 ST4.8 ST5.5 ST6.3 ST 8
Min.Torsional Strength NM 0.45 0.9 1.5 2 2.7 3.4 4.4 6.3 10 13.6 30.5

For Austenitic Bolts and Screws M1.6 to M1.6 to M1.6 (Coarse Thread)

Grade Standard   M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16
Min.Breaking Torque, MB Min.NM Property Class 70 0.20 0.4 0.9 1.6 3.8 7.8 13 32 65 110 290
80 0.24 0.48 0.96 1.8 4.3 8.8 15 37 74 130 330







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