Application
Fasteners and Threaded Rods
Bars for bolts, stud bolts, tie rods, threaded rods, and load-bearing threaded components.
Matching Logic
Start from the part, then match grade and route.
JOTAIN supports buyers by connecting part application, grade, delivery condition, processing route, inspection requirement, packing, and destination into a practical RFQ path.
Buyer checks
- Threading route
- Mechanical target
- Surface treatment
- Certificate requirements
Buyer Problem
What buyers normally need to control.
Fastener and threaded rod buyers need grade, strength target, QT route, pre-thread diameter, thread rolling, surface treatment, inspection, and document scope aligned before quotation.
Common materials
- 42CrMo4 / 4140
- 35CrMo
- 40Cr
Typical processing route
- Confirm fastener type, grade, standard, diameter, length, and quantity.
- Review QT condition against strength target or active specification.
- Review peeling or preparation to pre-thread rolling diameter.
- Confirm thread rolling route, surface treatment, and inspection scope.
- Confirm certificate, packing, labels, and destination port.
Inspection and documents
- Strength target and active specification
- Threading and surface treatment inspection scope
- MTC, traceability, and third-party inspection when requested
Application Details
Review the route before quotation.
- High-strength bolts
- 42CrMo4, 35CrMo, and 40Cr can be reviewed by standard, strength target, and route.
- Threaded rods
- Pre-thread diameter, thread rolling, and surface treatment should be defined during RFQ.
- Document review
- Mechanical tests, certificate scope, and inspection timing should be agreed before order.
RFQ Checklist
Send the details that affect grade and processing.
- Grade, standard, and strength class or target
- Diameter, length, quantity, and thread route
- QT condition and pre-thread diameter requirement
- Surface treatment and inspection scope
- Certificate, packing, and destination
Private Factory Processing
Route selection can include JOTAIN factory processing.
Processed through JOTAIN's private factories when project requirements call for heat treatment, peeling, grinding, straightening, chrome plating or cut-to-length preparation.
Factory route check
Confirm whether the application requires heat-treated, peeled, ground, straightened, chrome-plated, or cut-to-length preparation before quotation.
Related Routes
Review grade, processing, and document needs together.
Compare core grade routes before finalising the RFQ.
Match delivery condition, surface route, and downstream manufacturing needs.
State certificate, testing, traceability, and inspection requirements early.
RFQ
Send requirements for fasteners and threaded rods.
Include part type, grade or equivalent standard, diameter, length, quantity, delivery condition, processing route, destination port, and certificate requirements.