Full-suspension mountain bike frame with precision pivot bolts and linkage hardware

MTB Frame Fasteners & Suspension Hardware

Suspension pivots, linkage bolts, and frame hardware for full-suspension mountain bikes

## The Challenge: MTB Frame Fasteners Under Extreme Load Full-suspension mountain bike frames impose some of the most demanding requirements on fasteners in the bicycle industry. Suspension pivot bolts carry multi-directional impact loads through rock gardens and drops. Linkage bolts undergo cyclic bending and shear as the suspension articulates. A single failed pivot bolt can destroy a race run—or worse, a rider's confidence. Standard catalog bolts often fail at the interface between frame material, bolt material, coating, and torque specification. PremFixer's MTB fastener program starts from the drawing and works backward through material selection, heat treatment, and coating to deliver fasteners that survive.
## Key MTB Fastener Categories ### Suspension Pivot Hardware The backbone of any full-suspension frame. Suspension pivots must maintain precise alignment across the entire suspension travel while resisting galling, corrosion, and fatigue. - **PS-D Series**: M6–M12 suspension pivots and linkage bolt kits for Horst-link, VPP, and single-pivot designs - **PS-G / PS-I Series**: Sealed cartridge bearings and DU bushings for pivot interfaces - **PS-H Series**: Precision spacers and thrust washers for pivot stack control **Material options**: 42CrMo heat-treated alloy steel, 17-4PH stainless, 7075-T6 aluminum **Coatings**: Dacromet, Geomet, ED coating, zinc-nickel per salt spray requirement ### Disc Brake Mounting Hardware Post mount and flat mount brake interfaces require precision shoulder heights, thread engagement, and mounting face flatness to maintain brake alignment under heat cycling. - **PS-B Series**: Post mount brake bosses and disc brake adaptor hardware - **PS-A Series**: Button head screws and socket head cap screws for brake caliper mounting ### Frame Inserts & Threaded Fixings Every water bottle cage, fender mount, and accessory attachment point starts with a threaded insert. - **PS-E Series**: M3–M6 embedded weld nuts, bottle bosses, and rack mount nuts - **PS-F Series**: Stainless steel rivet nuts for blind frame installations
## Why PremFixer for MTB Fasteners | Requirement | PremFixer Solution | |---|---| | Drawing-led production | Submit a 2D drawing or STEP file. We quote from the drawing, not a catalog number. | | Material flexibility | 42CrMo, 17-4PH, 304/316SS, Ti-6Al-4V, 7075-T6 — specified per the engineering requirement | | Fatigue-critical design | Heat treatment cycles optimized for suspension pivot fatigue life | | Corrosion resistance | Salt spray tested coatings per project specification (240h–720h NSS) | | Batch traceability | Material certification, heat lot traceability, and dimensional reports from raw material to finished part | | No MOQ | Trial orders and prototype batches accepted before production ramp |
## RFQ Checklist for MTB Fasteners Send the following for a same-day engineering review: - 2D drawing or STEP file with material, tolerance, and thread specification - Target annual volume and initial batch quantity - Material grade preference (42CrMo, 17-4PH, 7075-T6, etc.) - Coating specification and salt spray hour requirement - Inspection requirements (torque test, fatigue test, dimensional report, PPAP level) - Packaging and labeling specification Submit MTB RFQ
## Related Series - [PS-D Suspension Pivots & Linkage Bolts](/products/ps-d-suspension-pivots-linkage-bolts) - [PS-B Disc Brake System Accessories](/products/ps-b-disc-brake-system-accessories) - [PS-E Embedded Weld Nuts & Bottle Bosses](/products/ps-e-embedded-weld-nuts) - [PS-G Bearings & Bushings](/products/ps-g-bearings) - [PS-H Spacers & Washers](/products/ps-h-spacers-washers)