Industrial Fastener · Threaded Rods Series
Stud Bolt, Double End
A double-end stud has threaded ends with a smooth midsection. One end (the 'tap end' or 'interference end') is permanently screwed into a tapped hole; the other end accepts a nut. Common in cast iron and aluminum housings where repeated bolt engagement would damage the parent thread.
Product Overview
Stud Bolt, Double End sourcing essentials
A double-end stud has threaded ends with a smooth midsection. One end (the 'tap end' or 'interference end') is permanently screwed into a tapped hole; the other end accepts a nut. Common in cast iron and aluminum housings where repeated bolt engagement would damage the parent thread.
DIN 938 (1d tap end), DIN 939 (1.25d tap end), DIN 835 (2d tap end)
Carbon steel, Stainless 304/316
A double-end stud has threaded ends with a smooth midsection. One end (the 'tap end' or 'interference end') is permanently screwed into a tapped...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Standards | DIN 938 (1d tap end), DIN 939 (1.25d tap end), DIN 835 (2d tap end) |
|---|---|
| Diameter Range | M5 – M48 |
| Material | Carbon steel, Stainless 304/316 |
| Surface Finish | Plain, Zinc plated, HDG |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
Why use a double-end stud instead of a hex bolt?
In castings (engine blocks, pump housings), repeated bolt removal damages the relatively soft parent thread. Installing a stud once and then removing only the nut preserves the parent thread. Studs also provide a more accurate clamping line in flange applications.
Ready to quote Stud Bolt, Double End?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.