17-4 PH Fully threaded stud & nut sets
ASME B18.31.2ASTM A564
A 17-4 PH stud-and-nut set brings aging-controlled strength and hardness to the complete threaded connection. The stud and two nuts retain separate material conditions, thread checks and lot identities within one BOM.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution treated (Condition A) / Age hardened H900 / Age hardened H1025 / Age hardened H1150
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Finished-Component Specifications
Threads · Metric
Threads · Inch
Dimension Reference
Heat Treatment
Solution treated, then aged to the specified H conditionCondition A is the solution-treated starting state; aging to H900, H1025 or H1150 sets the final strength–toughness balance.
What we can make in 17-4 PH
Stud
Finished stud length covers the flange stack, gasket and both nut engagements. Full-length thread permits nut positioning from either end for cover removal and flange assembly.
Nuts
Match nut thread class and proof-load requirements to the stud. Regular and heavy-hex patterns need different socket clearances and bearing footprints around the flange holes.
- Grade pairing
- Stud + two nuts
- Grade pairing
- Metric · UNC · UNF · 8UN · UNJ
- Grade pairing
- Component-by-component grades
- Grade pairing
- Heat and batch identification
- Final condition
- Solution treated (Condition A) · Age hardened H900 · Age hardened H1025 · Age hardened H1150
- Inspection
- Component count · Mating thread fit · Individual dimensions
Manufacturing route
Studs, nuts and washers are manufactured and inspected as separate components before the specified quantities are packed as a set.
Heat treatment & final condition
Solution treatment and the specified aging condition are recorded against the production lot; final dimensions are checked after thermal processing.
Finished geometry
Thread engagement, nut pattern and component grades are checked together. Each component retains its heat or batch identity in the set documentation.
Where 17-4 PH fits — and what matters
Industrial Machinery & Automation
Machine housings and service covers17-4 PH fully threaded stud & nut sets supply the stud and two mating nuts for machine housings and service covers as one assembly line item. Thread fit, nut pattern and stud length are coordinated before packing. Alignment, operating cycles and replacement access define the working interface.
Automotive & EV Manufacturing Equipment
Test-equipment housings17-4 PH fully threaded stud & nut sets supply the stud and two mating nuts for test-equipment housings as one assembly line item. Thread fit, nut pattern and stud length are coordinated before packing. Repeated tooling changes require consistent seating and repeatable assembly dimensions.
Pumps, Valves & OEM
Pump casings and valve bonnets17-4 PH fully threaded stud & nut sets supply the stud and two mating nuts for pump casings and valve bonnets as one assembly line item. Thread fit, nut pattern and stud length are coordinated before packing. Repeated maintenance makes fit, engagement and access part of the component specification.
Same stud & nut set. Different material priorities.
17-4 PH material data316L
Molybdenum-bearing stainless performance in wet equipment.
- Connection priority
- Preload shared by the stud and its mating nuts
- Washdown and retained cleaner
- Cleaner concentration, rinse quality and deposits determine the exposure in covered joints. The low-carbon designation does not independently establish a fastener strength class. Include liquid retained at the stud threads, two nut engagements and bearing seats in the exposure description.
Inconel 625
Solid-solution strength and resistance to aggressive process liquids.
- Connection priority
- Preload shared by the stud and its mating nuts
- Annealed or solution-annealed 625
- The delivery condition affects strength and high-temperature response. Keep the specified condition with the component’s mechanical acceptance; 718-style aging is not the strengthening route for 625. Include liquid retained at the stud threads, two nut engagements and bearing seats in the exposure description.
Duplex 2205
Duplex strength and chloride-corrosion resistance.
- Connection priority
- Preload shared by the stud and its mating nuts
- S31803 or S32205
- The specified UNS fixes the chemistry. Solution treatment, section size and the ordered mechanical or corrosion tests establish the final duplex condition. Include liquid retained at the stud threads, two nut engagements and bearing seats in the exposure description.
From drawing to documented delivery
- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS S17400 · heat number · ordered condition
- Final-part acceptance
- Lot-linked aging record and mechanical acceptance in the final condition.
- Dimensional record
- Component count · Mating thread fit · Individual dimensions
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Matching Kit
Flange Stud Bolt Kits
Build your 17-4 PH stud & nut set enquiry
Questions about 17-4 PH fully threaded stud & nut sets
What makes a set traceable rather than simply bagged together?
The stud and each nut lot retain their material and production identities. Component counts, mating thread checks and final conditions are recorded against the set’s BOM.