An3 An4
Overview
Product sourcing insights & recommendations
I have analyzed the market trends and product insights for AN3 and AN4 hardware, focusing on their distinct roles in high-performance automotive and aerospace systems.
AN3 (3/16") is the primary standard for high-pressure brake systems due to its minimal volumetric expansion, while AN4 (1/4") is critical for lubrication systems, specifically journal-bearing turbo oil feeds. The 2025–2026 market is characterized by a significant shift toward stainless steel braided PTFE components to meet the thermal and pressure demands of electric vehicles and modern aerospace standards.
The detailed report below includes technical specifications, application-specific recommendations, and a list of verified sourcing options for both automotive and aviation requirements.
I've analyzed the market for AN3 and AN4 hardware. You can explore further by:
An3 An4 Aircraft Bolts Hex Bolts Aviation Fasteners
Products · 3 lists
Flange Head Stainless Steel Carbon Steel Hex Bolts M4-M10 Zinc Plated Black Oxide Aerospace Grade Serrated Fasteners
Shenzhen Guantai Science And Technology Co., Ltd.🇨🇳CN8 yrs
Aircraft Fasteners Bolts Studs Nuts Rivets DIN EN Certified Lightweight Aluminum & Titanium OEM Supplier
Shanghai G&T Industrial Co., Ltd.verified🇨🇳CN12 yrs
BJCJTi GR5 Ti6Al4V Titanium Hex Bolts M20-M39 | Aerospace Grade High-Strength Fasteners for Aircraft UAV & Satellite Industry
Baoji Chengjin Titanium Industry Co., Ltd.verified🇨🇳CN9 yrs
Hot Sale Titanium Alloy Hex Head Flange Bolts UNF Thread Plain Finish High-strength and Lightweight Bolts for Aerospace Industry
Shaanxi Ruifuxiang Industry And Trade Co., Ltd.🇨🇳CN4 yrs
Malaxy Aerospace Titanium Hex Head Bolts High Strength Lightweight Durable Fastener Titanium Bolts
Shanghai Malaxy Industry Co., Ltd.verified🇨🇳CN5 yrs
Titanium Alloy Flange Hex Bolt | Colored Anodized | High Strength & Corrosion Resistant | Aerospace Grade
Hebei Zeqian Fastener Manufacturing Co., Ltd.verified🇨🇳CN2 yrs
M3 M4 M5 M6 7075 Aluminum Alloy Socket Head Cap Screw Anodized Color Cylinder Head Hex Bolt Super Hard Aerospace Fastener
Huizhou SNIPPIN Hardware Products Co., Ltd.verified🇨🇳CN2 yrsDeep Dive · Full Report
Full Market Report
1 document · Live-fetched from source
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Sources & References
24 sources cited · Verified industry data & reports
AN3 to AN3/AN4 to AN3/AN3 to AN4/AN6 to AN4 Various ...
Adlerspeed
AN3 to AN3/AN4 to AN3/AN3 to AN4/AN6 to AN4 Various AN Male Flare To AN Straight Cut O-Ring Aluminum Alloy Adapter Fitting.
2PCS AN3 AN4 AN6 Female to 3AN-12AN Male 90 Degree ...
Amazon.com
Buy 2PCS AN3 AN4 AN6 Female to 3AN-12AN Male 90 Degree Flare Swivel Hose Fitting Adapter Black Aluminium Anodized(AN3): Fittings & Adapters - Amazon.com ...
X-750404 PRO SERIES DOUBLE END WRENCH AN3-AN4
Good Vibrations Motorsports
XRP Anodized Double-end AN3 - AN4 wrench. Heat treated 6061 aluminum alloy for durability and strength. Designed to fit the swivel nuts on AN hose ends.
Bulkhead fitting AN3 AN4 stainless steel
TurboWorks
Bulkhead fitting AN3 AN4 stainless steel. TURBOWORKS. Add to shopping list.
AN BOLTS
Aircraft Spruce
AN3, AN4 and AN5 bolts in lengths from 3/8” to 2-3/4” with drilled and undrilled shanks, in quantities selected to accommodate popular usage. Furnished with ...
BT - Suggestions for AN and screws hardware kit
BeechTalk.com
Cotter pins for the AN3 AN4 size bolts. And some big ones for the axles. What hardware does the tail wheel need? My Citabria had a U bolt ...