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Nuts · T-Slot Nuts

T-Slot Nuts — DIN 508

T-Slot Nuts to DIN 508. Full dimensional table, materials, finishes and quotation. 13 sizes listed.

Technical Drawing

Select a size to view the dimensioned line drawing. Annotations update automatically from the selected dimensions.

T-Slot Nuts (DIN 508) are a type of nuts used across industrial assembly. Below is the complete size table together with material, standard and application guidance.

What Are T-Slot Nuts?

T-Slot Nuts are nuts defined by DIN 508. They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.

Dimensions & Specifications (DIN 508)

Thread size T-slot width (mm) Nut width b (mm) Total height h (mm) Key height h1 (mm) Hook width e (mm) Reference standard
M5 6 8.0 8.0 4.5 6.4 DIN 508 / GN505
M6 8 10.0 10.0 5.5 8.4 DIN 508 / GN505
M8 10 12.0 12.0 7.0 10.4 DIN 508 / GN505
M8 12 14.0 12.0 7.0 12.4 DIN 508 / GN505
M10 12 14.0 14.0 8.0 12.4 DIN 508 / GN505
M10 14 16.0 14.0 8.0 14.4 DIN 508 / GN505
M12 14 16.0 17.0 10.0 14.4 DIN 508 / GN505
M12 18 20.0 17.0 10.0 18.4 DIN 508 / GN505
M16 18 20.0 20.0 12.0 18.4 DIN 508 / GN505
M16 22 25.0 20.0 12.0 22.4 DIN 508 / GN505
M20 22 25.0 25.0 15.0 22.4 DIN 508 / GN505
M20 28 32.0 25.0 15.0 28.4 DIN 508 / GN505
M24 28 32.0 30.0 18.0 28.4 DIN 508 / GN505

Materials & Finishes

Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.

Typical Applications

Paired with bolts and studs across machinery, structures and equipment; lock variants resist loosening under vibration.

Related Fasteners

Pricing

T-Slot Nuts are stocked and supplied to order. Pricing starts from approximately US$0.12 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Request a quotation below for your exact specification.

Request a Quotation for T-Slot Nuts

Tell us the size, material, finish and quantity you need for T-Slot Nuts (DIN 508) and our team will respond within one business day.

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Specification
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Frequently Asked Questions

What standard do T-Slot Nuts conform to?

T-Slot Nuts are manufactured to DIN 508. The dimensional values on this page follow that standard.

What sizes are available for T-Slot Nuts?

The table on this page lists 13 sizes, ranging from M5 to M24. Other sizes can be quoted on request.

What materials and finishes are T-Slot Nuts available in?

Common options are carbon steel (zinc plated or hot-dip galvanized), alloy steel in property classes 8.8/10.9/12.9, and stainless steel A2 (304) or A4 (316). Specify material and finish to suit your load and environment.

How do I request a quote for T-Slot Nuts?

Use the fastener finder on this page to set the size, material, finish and quantity, then submit the request. A specialist from engineeringhardware.com will reply within one business day.