Industry News- Better Fastener Industry Co., Ltd.

Slotted Screws Explained: Head Styles, Standards, Tolerances, Sourcing

Oct 27, 2026

A purchase order that reads only "slotted screws, M4 x 12, stainless" leaves the supplier guessing at four things: head style, slot width, property class and the edition of the standard behind the d...
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Spring Washers Explained: Types, Load Curves, Standards and Sourcing Checks

Oct 23, 2026

A spring washer does nothing until it is compressed. Fit one where the joint is already clamped metal to metal, and what you have installed is a flat washer with a gap cut in it. On a DIN 127 B wash...
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Plain Washers Explained: Standards, Sizes, Materials and Sourcing Guide

Oct 16, 2026

An M10 bolt torqued to 45 Nm on a 2 mm aluminium panel leaves a visible dent before the wrench ever clicks. The bearing face under a hex head is small, and thin or soft joint materials rarely surviv...
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Plain Washers Explained: Standards, Sizes, Materials and Selection Tips

Oct 09, 2026

A plain washer is the cheapest line on a fastener list and the part most likely to be substituted when a project runs late. That substitution is rarely harmless, because a washer that arrives 0.2 mm...
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T-Head Bolts: DIN 188 and ASME B18.5 Sizing, Grades and Clamping Guide

Sep 23, 2026

Slide a T-head bolt into a machine table slot, turn it a quarter turn, and it locks against the slot flanges. That one motion is why T-head bolts drive the clamping kits on milling machines, welding...
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Hexagon Head Bolts: Standards, Grades, Wrench Sizes and Inspection Checks

Sep 23, 2026

Sizing a hexagon head bolt usually comes down to one dimension that never appears in the part name: the across-flats measurement. An M10 bolt made to ISO 4017 takes a 16 mm wrench. The older DIN 933...
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Hexagon Flange Nuts: Standards, Sizes, Torque Values and Sourcing Guide

Sep 23, 2026

A joint that calls for a bolt, a flat washer and a lock washer is a joint with three supply lines, three bin locations and three chances of the wrong part reaching the assembly line. That is why hex...
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What is a Screw?

Jul 01, 2026

A screw is a fastening tool that utilizes the principle of an inclined spiral plane to join or secure objects together. Its core structure consists of a cylindrical body with continuous threads (like ...
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What is a Nut?

Jul 01, 2026

Now that we've covered bolts, their "perfect partner" — the nut — is much easier to understand. Simply put, a nut is a small metal block or disc with a round hole in the center and internal threads on...
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What is a Washer?

Jul 01, 2026

Simply put, a washer is a thin, disc-shaped ring with a central hole, typically made of metal (such as carbon steel, stainless steel, or copper) or non-metallic materials (such as rubber, plastic, or ...
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