GEM manufacture a highly engineered range of petro-chemical grade stud bolt assemblies and fasteners developed specifically for critical applications in the petro chemical and processing Industries.

Our product range includes all grades of stud materials and heavy hexagonal nuts complying with DIN,GB,ISO,ATSM specifications.

All material grades used in the petrochemical industry are catered for; materials generally available are released to both DIN,GB,ISO,ATSM standards.

Forging Capacity

Cold forge bolts from: M12 to M36 (½" - 1½")

Hot forge bolts from: M12 to M100 (½" – 4")

Stud Bolts

We supply stud bolts for pressure vessels, valves, flanges and fittings.

Studs M12 to M120 (½" - 5")

Petrochem bolts

Threaded studs: B7 / L7 / B7M / L7M / B16 B8 / B8M Class 1 and Class 2 Stainless Steel

Grades: 8.8, 10.9 & 12.9

Finishes: Zinc plating; Zinc Nickel; Hot Dip Galvanizing; Sherardized; Delta; Mn / Zn Phosphating; Xylan.

Studs and Bolts

Petrochemical grades, stainless steel grades, exotic alloys: (nickel, brass, bronze, titanium), all threaded rod, low carbon studs, heavy hex bolts.

Threaded studs: B7 / L7 / B7M / L7M / B16 B8 / B8M Class 1 and Class 2 Stainless Steel

Grades: 8.8, 10.9 & 12.9

Finishes: Zinc plating; Zinc Nickel; Hot Dip Galvanizing; Sherardized; Delta; Mn / Zn Phosphating; Xylan.

Nuts

Heavy hex, all materials and grades, industrial electroplating and specialty coatings.

Nuts: 2H / 2HM / Gr4 / GR7 / 7M

Finishes: Zinc plating; Zinc Nickel; Hot Dip Galvanizing; Sherardized; Delta; Mn /Zn Phosphating; Xylan.