Metrics Series

Generally confirming to IS:2269, DIN 912 ISO:4762
Property class 12.9 as per IS 1367, ISO 898 part 1

Inch Series

Generally conforming to BS:2470
Mechanical property as per BS 2470

Metrics Series

Generally confirming IS:1364, ISO:4014, DIN 931/933
Thread as per IS:4218, ISO metric6g and property class 10.9 as per IS:1367

Inch Series

Generally conforming to ANSI B 18.2.1 for BS:1083 
Thread UNC 2A as per ANSI B1.1 for BSF BS:84
Mechanical properties grade 8 as SAE J429 for BSF BS:1083

High Strength Structural Bolts

As per IS:3757, property class 10.9
Nuts : IS 6623, Washer : IS 6649

Studs & Nuts

Nuts with metric threads as per IS :1364, ISO 4032 & Nuts with UNC Threads (ANSI B 18.2.2)

Studs & Nut Heavy Hex

Generally conforming to ASTM A 193 grade B7 & A 194 Grade 2H

Special forged items like Square Head Bolt, D Bolt, T Bolt, Liner Bolt, Track shoe Bolt in grades 8.8, 10.9, 12.9 are manufactured.