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Spec·01 · Buyer Requirement Routing

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Tell us what fastener you need and we'll route it to every verified supplier who makes it. No cold calls, no browsing hundreds of listings.

01
Tell us what you need
Category, quantity, grade, standard — whatever you know.
02
We route it to matching suppliers
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03
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Requirement / Spec Sheet
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183+
Fastener & fitting categories
15
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All-metal lock nuts requirement posted18 hours, 30 minutes ago · Thousand Oaks
Flange bolts requirement posted4 days ago · Beijing
Wood screws requirement posted4 days, 2 hours ago · Singapore
Bolts requirement posted4 days, 21 hours ago · Mumbai
Bolts requirement posted4 days, 21 hours ago · surat
Wing nuts requirement posted6 days, 4 hours ago · London
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Demand · Last 7 Days
High-demand categories right now
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Directory · Index 01–12
Browse the catalogue
All categories ›
CAT·01 Anchor Fasteners 9 sub-categories CAT·02 Bolts 15 sub-categories CAT·03 Circlips 5 sub-categories CAT·04 Keys 4 sub-categories CAT·05 Nuts 13 sub-categories CAT·06 Pins 8 sub-categories CAT·07 Pipe Fittings 5 sub-categories CAT·08 Rivets 10 sub-categories CAT·09 Screws 15 sub-categories CAT·10 Self-Clinching Fasteners 9 sub-categories CAT·11 Shackles 4 sub-categories CAT·12 Spacers and Standoffs 3 sub-categories CAT·13 All Categories →
Process · QC-03
How verification works
Every supplier goes through the same three checks, in order, before they can list
01 / GST CHECK
GST & business check
We validate the supplier's GSTIN against government records and confirm the business is registered and active.
02 / DOCS
Certificate review
Quality certificates, factory licenses, and material test certificates are reviewed before they're marked verified.
03 / LIVE
Live on marketplace
Once verified, the supplier's trust score and response rate stay visible and update with every enquiry they handle.
Verified · This week
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S-3FPARTS INNOVATION LLP
AHMEDABAD, GUJARAT · Blind rivets
✓ GST VERIFIED Export ready
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15 engineering tools every buyer & supplier needs
Torque charts, DIN/ISO cross-reference, weight calculator, thread identification & more
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Free engineering tools
Reference tools for specifying the right fastener, no login needed
All tools ›
01
Torque chart
02
DIN/ISO cross-reference
03
Thread identification
04
Weight calculator
Spec Directory
Search by standard, material & thread
Standard
DIN (Germany) ISO (International) ANSI / ASME (USA) ASTM (USA — materials/mechanical) SAE (USA — automotive) BS (Britain) EN (Europe) IS (Indian Standard) JIS (Japan) GB / GB-T (China) NF (France) UNI (Italy) AS/NZS (Australia/NZ) GOST (Russia/CIS) ASME BPE (Pharma/Bioprocessing) IDF (Dairy — International Dairy Federation) SMS (Dairy — Swedish standard) RJT (Dairy — British Royal Jubilee Thread) 3-A Sanitary Standards (Dairy/Food, USA) Non-standard / custom
Material
Stainless Steel Mild Steel Alloy Steel Brass Copper Aluminium Titanium Nylon / Plastic
Thread type
Metric coarse (… Metric fine (MF) UNC (Unified Co… UNF (Unified Fi… UNEF (Unified E… BSW (British St… BSF (British St… ACME (trapezoid… Trapezoidal / T… BSP Parallel (B… BSP Tapered (BS… NPT (National P… Self-tapping — … Self-tapping — … Self-tapping — … Self-tapping — … Self-tapping — … Self-tapping — … Self-tapping — … Other / non-sta…