Double Ended Studs – Precision for Critical Assemblies
Product Description
Double Ended Studs are threaded fasteners with threads on both ends and an unthreaded section (shank) in the middle. Designed for permanent fixtures in tapped components, these studs allow two separate parts to be clamped together using nuts on both ends.
At SM Fasteners, we manufacture double ended studs with high precision, ideal for applications demanding reliable axial clamping, resistance to thermal stress, and vibration stability. Our range includes both standard and customized lengths for flange bolting, engine assemblies, and critical joints.
Applications
Double ended studs are widely used in:
Engine Head and Block Connections
Pumps, Compressors, and Valves
Flange-to-Flange Connections
Power Plant Boilers and Steam Turbines
Heavy Equipment Assembly
Transmission & Gearbox Housings
Heat Exchangers and Pressure Vessels
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Double Ended Stud Bolt |
| Standards | DIN 939, DIN 835, ASTM A193, ISO |
| Grades | B7, B8, B8M, 8.8, 10.9, SS304, SS316 |
| Thread Type | Metric, UNC, UNF, BSW |
| Thread Length | Custom or as per DIN/ASTM standard |
| Shank (Unthreaded Portion) | Based on application or standard design |
| Diameter Range | M6 to M72 or 1/4” to 3” |
| Length Range | 30mm to 1200mm |
| Finish | Black Oxide, Zinc Plated, HDG, PTFE |
| Heat Treatment | Yes (for B7, 10.9, etc.) |
Why Choose Our Double Ended Studs?
SM Fasteners stands out in delivering highly durable and certified stud bolts designed to withstand extreme industrial conditions.
✅ Dual-end threading with accurate depth & pitch
✅ Machined chamfered ends for easy nut engagement
✅ Uncompromising quality control & heat treatment
✅ Surface finish options suited for offshore & corrosive environments
✅ Available in carbon steel, alloy steel, and stainless steel grades
✅ Customizable lengths and thread combinations
Packaging and Delivery
We ensure safe, efficient, and damage-free packaging:
Anti-rust oiled or PTFE coated
Batch-wise packing with size & grade labels
Heavy-duty corrugated boxes or wooden crates
Export-marked and barcoded on request
Industries We Serve
Automotive & Engine Manufacturing
Power Generation & Thermal Plants
Oil & Gas Refining Units
Aerospace and Defense Fabrication
Heavy Equipment and Machinery
Marine and Offshore Engineering
Structural Steel Assembly
Documents Supplied
Each shipment includes:
EN 10204 3.1 / 3.2 Certificates
Thread Calibration Reports
Material Traceability Sheets
Hardness & Heat Treatment Reports
Coating & Finish Certificates
Packing List, Invoice, and Batch Numbering
Request a Quotation
Looking to source precision-engineered double ended studs?
📧 Email: susheel@smfastners.com
📞 Phone: +91 8968469570
💬 WhatsApp Chat: Click to Chat
🔧 SM Fasteners – Bolting Excellence, Delivered.