Petrochemical Fasteners Studbolts Studs Heavy Hex Bolts Socket Capscrews Heavy Hex Nuts Plating & Coatings Fasteners Hex Head Products Socket Products Foundation Bolting Studding Hex Nuts Washers Gaskets Spiral Wound Gaskets Ring Type Joints Soft Cut Gaskets Insulation Kits Pipe Supports U-Bolts Pipe Clamps Eyebolts Hemispherical Washers Hex Connecting Nut I-Rod / Nu-Bolts DIN 835 M/E=2D DIN 940 M/E=2.5D DIN 2510-Z / ZU DIN 938 M/E=1D DIN 2510-L DIN 939 M/E=1.25D DIN 2510-K / KU