Corrosion Resistant Metal Parts

Name: Corrosion Resistant Metal Parts
SKU: 126

Corrosion Resistant Metal Parts from XIAYI lock by geometry, not friction: a hex rim, six locating bumps and an integral external thread held to 0.015 mm. Our factory coats every surface including thread roots — rust never gets a bare patch to start from.

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Product Description

The Corrosion Resistant Metal Parts kit — an externally threaded hexagonal locating flange plus a stepped cylinder support base — carries a triple locking system: hexagonal rim to prevent rotation during assembly, six evenly distributed positioning bumps to stop sliding, and integrated external threads to lock the top mount directly. Friction alone never holds; geometry does.

The Triple Locking System

Lock Layer	Function
1. Hexagonal outer rim	Prevents rotation during assembly and tightening
2. Six locating protrusions	Engage chassis sheet metal — no slip under road vibration
3. Integrated external thread	Locks the shock top mount directly — no separate fastener
Double-layer stepped cavity	Two step platforms hold buffer rubber, dispersing axial and lateral load; sealed against silt, salt and rain

Anti-Corrosion: Built for the Harshest Underbody

Full-coverage zinc passivation on every surface, including thread roots and step edges — no bare zone for rust to start
Coating tiered by steel grade with online thickness monitoring; under-plated parts are stripped and re-plated before shipment
Adhesion verified by 3M tape pull test — no large-area peeling, no rust debris contaminating damping oil
Weld-free forming — hex profile, threads, protrusions and stepped cylinder molded simultaneously, so there is no weld seam to corrode or crack

Thread & Hex Tolerance Discipline

Inspection Item	Tolerance	Risk if Out of Tolerance
External thread pitch & hex opposite-side dimension	±0.015 mm	Thread slipping during tightening; hex offset causes rotation & rattle
Matched central hole concentricity	≤ 0.025 mm	Unilateral oil seal compression and leakage
Stepped cylinder wall thickness uniformity	≤ 0.02 mm	Thin step collapse under bump squeeze
Double-sided flange flatness	≤ 0.02 mm	Tilted assembly, positioning shift

FAQ

Q: Why triple locking when our current sleeve uses friction only?

A: Friction decays with wear, corrosion and temperature. The hex + bumps + thread system holds by geometry, so the sleeve cannot rotate, slide or loosen even after years of vibration — it removes the noise complaint category entirely.

Q: Do stamped threads survive repeated tightening in the field?

A: Yes — threads are roll-formed integrally with smooth tooth roots (no stress notches), and million-cycle vibration tests show no slip wear. ST14 grade keeps thread roots crack-free.

Specify the triple-lock kit — request samples with thread gauge reports

Ningbo XiaYi Electromechanical Tech Co., Ltd. forms hex-flange threaded kits in one 8-station stamping cycle. Send your thread spec and flange layout for a matched quotation.

About XIAYI corrosion focus: this kit was engineered for markets where underbodies see salt half the year — coating, material purity and weld-free structure were all chosen so rust never becomes the failure mode.

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Contact Info

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Address

No.209 Lane 520 Tongning Rd,Qianjiang Street,Jiangbei District, Ningbo City, Zhejiang Province, China
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Tel

+86-13586885132
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Email

sales@xiayiparts.com

Get a Tailored Quote for Your Shock Absorber Parts

Why Global Buyers Choose Ningbo Xiayi:
✓ IATF 16949 Certified — Defect rate strictly controlled below 0.1%.
✓ Full-Category Supply — Pistons, rods, springs, stampings & rubber parts.
✓ R&D Support — Custom powder metallurgy formulas & 7-10 day rapid prototyping.
✓ Proven Capacity — 50 million core pistons produced annually for global OEMs.

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