Carbon Steel Stud Bolts with two heavy Hexagonal nuts Stud bolts material: ASTM A193 Gr.B7 Design and dimensions: ANSI B 18.2.1. Male threaded: ANSI B 1.1 CI.2A Tolerance according to ASTM A 193,ANSI B 18.2.1and ANSI B 1.3 Heavy hexagon nuts Material: ASTM A194 Gr.2H Design and dimensions: ANSI B 18.2.2. Female threaded: ANSI B 1.1 CI.2B Tolerance according to ASTM A 194,ANSI B 18.2.2and ANSI B 1.3 3000 pcs: 1/2" UNC x65mm, 22mm Across Flats 2500 pcs: 5/8ʺ UNC x90mm, 27mm Across Flats 800 pcs: 5/8ʺ UNC x100mm, 27mm Across Flats 300 pcs: 5/8ʺ UNC x130mm, 27mm Across Flats 300 pcs: 5/8ʺ UNC x160mm, 27mm Across Flats 700 pcs: 5/8ʺ UNC x210mm, 27mm Across Flats 3000 pcs: 3/4ʺ UNC x110mm, 32mm Across Flats 1500 pcs: 3/4ʺ UNC x120mm, 32mm Across Flats 400 pcs. 3/4ʺ UNC x150mm, 32mm Across Flats 300 pcs. 3/4ʺ UNC x160mm, 32mm Across Flats 500 pcs: 3/4ʺ UNC x180mm, 32mm Across Flats 400 pcs: 3/4ʺ UNC x210mm, 32mm Across Flats. 100 pcs: 7/8 ʺ UNC x130mm, 36mm Across Flats 100 pcs: 7/8 ʺ UNC x170mm, 36mm Across Flats 600 pcs: 7/8 ʺ UNC x180mm, 36mm Across Flats 1000 pcs: 7/8 ʺ UNC x210mm, 36mm Across Flats 1600 pcs: 7/8 ʺ UNC x225mm., 36mm Across Flats Important notes: 1- All items should be stamped with heat number and material specs. 2- On your offer should mention history record for supplying same produced material to petroleum company. 3- Origin restrictions :Chinese ,Indian, Taiwan are not accepted. 4- Mechanical and Chemical test certificate will be submitted. 5-Mention the finishing of your offered items