With years in sourcing, I supply custom long steel bolts UNC thread for demanding assemblies. Our capability covers bulk orders for Wholesale customers and Manufacturers who need consistent performance across factories. You choose length, diameter, head style, and coating, and I deliver precision-machined parts that meet your specs and tolerance. The UNC thread ensures compatibility with standard nuts and fastener systems, reducing assembly risk on the line. I partner directly with trusted mills and finishers to guarantee lead times, competitive pricing, and traceable quality control. Every batch ships with inspection reports and material certs, so you can pass audits without delay. Whether you’re stocking a distribution center or building a supply chain, I can scale to your project size and timeline. Reach out for a tailored quote and samples. Let's turn your bolt requirements into reliable, repeatable performance.
Global buyers seek long steel bolts with UNC threads for strength, precision, and reliable supply. Custom long bolts suit heavy machinery and extended assemblies where secure, uniform threading matters. UNC provides standard pitch and easy nut compatibility for cross-border sourcing. Factories offer design support, tight tolerances, and scalable production. Options include head styles (hex, socket, button), lengths, diameters, and thread pitches. Materials range from carbon and alloy steels to stainless grades, with heat treatment and coatings (galvanized, black oxide, electroplating) for harsh environments. Quality is verified by in-line inspection. To streamline procurement, specify exact requirements: length, diameter, UNC thread (e.g., 1/2-13 UNC), tolerance, coating, head type, quantity, and needed certifications. Ask about lead times, packaging, and minimum order quantity. Choose partners offering QA documentation, traceability, and shipping options for reliable global delivery under common incoterms.
| Item ID | Part Name | Material | Thread Type | Diameter (in) | Length (in) | Grade | Finish / Coating | Head Type | Standard | Tensile Strength (ksi) | Temperature Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WB-1001 | Long UNC Thread Steel Bolt | Carbon Steel AISI 1018 | UNC | 0.375 in | 6.00 in | Grade 5 | Zinc plated | Hex | ASTM A307 / ASME B18.2.1 | 105 | -60 to 200 °C |
| WB-1002 | Long UNC Thread Steel Bolt | Carbon Steel AISI 1022 | UNC | 0.500 in | 8.00 in | Grade 8 | Zinc plated | Hex | ASTM A307 / ASME B18.2.1 | 150 | -60 to 190 °C |
| WB-1003 | Long UNC Thread Steel Bolt | Alloy Steel AISI 4140 | UNC | 0.625 in | 12.00 in | Grade 8 | Black oxide finish | Hex | ASTM A307 / ASME B18.2.1 | 180 | -60 to 260 °C |
| WB-1004 | Long UNC Thread Stainless Bolt | Stainless Steel 304 | UNC | 0.750 in | 10.00 in | A2-70 | Passivated | Hex | ASTM F593 / ASME B18.13.3 | 75 | -196 to 427 °C |
| WB-1005 | Long UNC Thread Alloy Bolt | Carbon Steel 4340 | UNC | 0.3125 in | 4.00 in | Grade 8 | Plain / Zinc | Hex | ASTM A307 / ASME B18.2.1 | 180 | -100 to 260 °C |
| WB-1006 | Long UNC Thread Steel Bolt | Carbon Steel AISI 1020 | UNC | 0.5625 in | 15.00 in | Grade 5 | HDG (Hot Dip Galvanized) | Hex | ASTM A307 / ASME B18.2.1 | 110 | -60 to 210 °C |
| WB-1007 | Long UNC Thread Stainless Bolt | Stainless Steel 316 | UNC | 0.4375 in | 9.50 in | A4-80 | Polished | Hex | ASTM F593 / ASME B18.13.3 | 95 | -196 to 427 °C |