Automotive Fasteners
Custom fastening parts for automotive applications. Cold headed from M5 to M24 in 40Cr.
HYHAVEN CUSTOM COMPONENTS
Custom Fasteners Manufacturer
Made to your drawing, or made to your sample.
Non-standard bolts, special-shaped fasteners, threaded sleeves and lead screws for automotive, wheel, machinery and industrial applications — with inspection reports available with every order.
M5–M24Cold heading range
M8–M64Machined custom bolts
±0.05 mmTolerance
2,000 pcsMinimum order
Custom bolts, made to your drawing →
Company exterior shown in the company catalog
COMPANY & LOCATION
A Wenzhou base for custom component projects
HyHaven is the international brand of Wenzhou Jianshun Electrical Co., Ltd. Share a drawing or sample with our team to review dimensions, material, surface finish and order requirements before quotation.
Wenzhou Jianshun Electrical Co., Ltd.No. 13 Dayuan Road, Zeya Town, Ouhai District, Wenzhou, Zhejiang, China View location on Google Maps →
PRODUCTION WORKSHOP
Inside the Wenzhou workshop
A view of the production floor where custom component projects are made. Share your drawing or sample to discuss the manufacturing steps your part needs.
PRODUCT RANGE
Fasteners and Machined Components
Wheel Fasteners
Wheel bolts and studs made to the dimensions you provide, in strength grades up to 12.9.
Custom & Special-Shaped Fasteners
Non-standard geometries made to your drawing or sample, held to ±0.05 mm.
Threaded Sleeves
Threaded sleeve components for project-specific assemblies, machined to your thread specification.
Large & Socket Head Fasteners
Large and socket-head fasteners for industrial assemblies, machined up to M64.
Lead Screws & Worm Screws
Lead screws and worm screws machined to your specification — module, lead and length to drawing.
Automotive manufacturing, rail transit, construction machinery, packaging machinery, electrical equipment and other industrial applications.
U-bolts and anchor bolts: made to drawing. Send the drawing and we will review it and quote — these are case-by-case parts, not stock items.
Request a QuoteCAPABILITIES
Custom Production and Inspection
| Cold heading | M5–M24 |
|---|---|
| Machined custom bolts | M8–M64 (range varies by model) |
| Strength grades | 4.8 / 8.8 / 10.9 / 12.9 |
| Processes | Multi-station cold heading, turning, milling, drilling and grinding |
| Inspection | Composition, metallography, hardness, dimensions, contour and surface roughness; inspection report available with each order |
| Main material | 40Cr; other materials by discussion |
| Surface finish | Black oxide, Dacromet, color zinc plating and zinc plating |
| Tolerance | ±0.05 mm |
Samples and existing specifications
For an existing sample, template or factory specification, shipping can be arranged quickly, subject to transit time. If no sample is available, a tooling fee is required.
Mass production
Production terms are discussed based on order quantity.
Inquiry hours
Questions can be sent during China time 08:00–22:00. This is a contact window, not a response-time commitment.
IN-HOUSE INSPECTION
Inspection Equipment
- Carbon-Sulfur Analyzer
- Direct-Reading Spectrometer
- Metallographic Analysis System (Nikon)
- Micro Vickers Hardness Tester
- Brinell-Rockwell-Vickers Hardness Tester
- Video Measuring System
- Contour Measuring Instrument
- Surface Roughness Tester
HOW WE WORK
From Drawing or Sample to Shipment
- 01Drawing / Sample
- 02Technical Review
- 03Quotation
- 04Sample Approval
- 05Production Inspection
- 06Shipment
Distributor, importer, OEM and project-based cooperation welcome.
Payment Terms
Samples are paid 100% in advance. For mass production, 30% deposit and 70% balance before shipment. For special requirements, please contact us.
QUESTIONS
Before You Ask for a Quote
What is the minimum order quantity?
2,000 pieces per part. Samples are available before a production run — samples are paid 100% in advance.
What do you need from me to quote?
A drawing or a physical sample, the quantity, the material and strength grade, and the surface finish. The quote form below collects all of it — drawings can follow by email or WhatsApp.
Is there a tooling (mold) fee?
Where a part needs new tooling, a tooling fee applies. The amount depends on the part and is quoted with your project — there is no flat figure.
Can you make U-bolts and anchor bolts?
Yes — both are made to drawing. Send the drawing first; we review it and quote per project. They are not standard stock items.
Do parts ship with an inspection report?
Inspection is done in-house — composition, metallography, hardness, dimensions, contour and surface roughness — and a report is available with every order.
PROJECT INQUIRY
Request a Quote
No file upload is available on this form. Please send drawings to support@hyhavenstore.com or WhatsApp +86 139 5881 4345.
CONTACT
Wenzhou Jianshun Electrical Co., Ltd. | HyHaven
Email: support@hyhavenstore.com
WhatsApp: +86 139 5881 4345
Website: hyhavenstore.com