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Stud Bolts


Bigboltnut manufactures the complete range of petrochemical grade stud bolts in alloy steel as per ASTM A 193 and A 194 grades. We also manufacture stud bolts in full thread and double ended from M-16 to M-100 diameter.

Stainless Steel
Standard Dimension Description Size Dimensions Finish Material Grade
DIN 938 Stud bolts M-16 to M-100 MM and Inches Bright SS 304, SS 316, SS 316L, 316S31
DIN 939 Stud bolts M-16 to M-100 MM and Inches Bright SS 304, SS 316, SS 316L, 316S31
DIN 2510 Stud bolts M-16 to M-100 MM and Inches Bright SS 304, SS 316, SS 316L, 316S31
DIN 975 Stud bolts M-16 to M-100 MM and Inches Bright SS 304, SS 316, SS 316L, 316S31
Alloy Steel
Standard Dimension Description Size Dimensions Finish Material Grade
DIN 938 Stud bolts M-16 to M-100 MM and Inches Plain, HDG, GI 10.9 , 12.9
DIN 939 Stud bolts M-30 to M-100 MM and Inches Teflon, PTFE 10.9 , 12.9
DIN 2510 Stud bolts M-16 to M-100 MM and Inches Zinc aluminum flake 10.9 , 12.9
DIN 975 Stud bolts M-30 to M-100 MM and Inches Bright 10.9 , 12.9
Duplex
Standard Dimension Description Size Dimensions Finish Material Grade
DIN 938 Stud bolts M-16 to M-100 MM and Inches Bright S32205 , S31803
DIN 939 Stud bolts M-30 to M-100 MM and Inches Bright S32205 , S31803
DIN 2510 Stud bolts M-16 to M-100 MM and Inches Bright S32205 , S31803
DIN 975 Stud bolts M-30 to M-100 MM and Inches Bright S32205 , S31803
Carbon Steel
Standard Dimension Description Size Dimensions Finish Material Grade
DIN 938 Stud bolts M-16 to M-100 MM and Inches Plain, HDG, GI 4.6, 5.6, 6.6, 8.8
DIN 939 Stud bolts M-30 to M-100 MM and Inches Teflon, PTFE 4.6, 5.6, 6.6, 8.8
DIN 2510 Stud bolts M-16 to M-100 MM and Inches Zinc aluminum flake 4.6, 5.6, 6.6, 8.8
DIN 975 Stud bolts M-30 to M-100 MM and Inches Bright 4.6, 5.6, 6.6, 8.8

Our main line of manufacturing is petrochemical Stud bolts, petrochemical stud bolts, double ended stud bolts, collar stud bolts, shoulder studs, tap end stud bolts, we manufacture these products in stainless steel ( SS ), alloy steel and carbon steel grades used in the oil & gas industry for pipelines and flange joints, Our factory which is situated in Kundli in India is producing these products for customers in petrochemical and oil & gas industry in Middle eastern countries like, Dubai, U.A.E., Omam, Qatar, Saudi arabia, Bahrain, Iran, Iraq, Jordan etc .