Research library

Sources behind our industrial knowledge

This library shows the public sources used to prepare our guides. Each source remains tied to the topics where it was used.

How to use this library: read the source class and limitation with every record. A single supplier page can support a product value, but it cannot prove an industry-wide rule. Confirm the original document before using a number in a design or purchase specification.

unknown

whatispiping.com

Scope: Unclassified source

Used in: hex bolt

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: not stated by source · Evidence links: 110

Open original source

unknown

www.mcmaster.com

Scope: Unclassified source

Used in: hex bolt

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: not stated by source · Evidence links: 55

Open original source

unknown

screwboltsize.com

Scope: Unclassified source

Used in: hex bolt

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: not stated by source · Evidence links: 37

Open original source

unknown

its-inc.com

Scope: Unclassified source

Used in: self locking fasteners

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: 2026-04-21 · Evidence links: 4

Open original source

manufacturer

wilsongarner.com

Scope: Manufacturer technical documentation

Used in: washer types function and selection

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2026-06-17 · Evidence links: 2

Open original source

unknown

fasten.one

Scope: Unclassified source

Used in: zinc flake coating

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: 2026-02-24 · Evidence links: 4

Open original source

unknown

battery.sentiention.com

Scope: Unclassified source

Used in: zinc flake coating

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: 2026-09-13 · Evidence links: 2

Open original source

unknown

engineeringhardware.com

Scope: Unclassified source

Used in: zinc plating

Evidence limit: Needs editorial verification before supporting a strong claim.

Published or recorded: 2026-07-21 · Evidence links: 2

Open original source

manufacturer

www.fastenright.com

Scope: Manufacturer technical documentation

Used in: tamper proof screw drive types compared

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: not stated by source · Evidence links: 5

Open original source

manufacturer

www.nord-lock.com

Scope: Manufacturer technical documentation

Used in: washer types function and selection

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2025-04-24 · Evidence links: 4

Open original source

manufacturer

nutsandbolts.com

Scope: Manufacturer technical documentation

Used in: nut types and selection guide

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: not stated by source · Evidence links: 2

Open original source

manufacturer

www.fastenright.com

Scope: Manufacturer technical documentation

Used in: washer types function and selection

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2024-09-18 · Evidence links: 5

Open original source

manufacturer

wilsongarner.com

Scope: Manufacturer technical documentation

Used in: nut types and selection guide

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2026-06-26 · Evidence links: 3

Open original source

manufacturer

wilsongarner.com

Scope: Manufacturer technical documentation

Used in: washer types function and selection

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2025-09-04 · Evidence links: 5

Open original source

manufacturer

psmfasteners.com

Scope: Manufacturer technical documentation

Used in: washer types function and selection

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2026-10-01 · Evidence links: 3

Open original source

manufacturer

www.fastenright.com

Scope: Manufacturer technical documentation

Used in: security nuts one way shear breakaway

Evidence limit: Describes the named product, model or test; do not generalize without support.

Published or recorded: 2022-09-27 · Evidence links: 12

Open original source