DIN562 304 A2-70 Stainless Steel Thin Square Nut — Metric Thread M2.5–M10

DIN562 thin square nuts are the low-profile variant of the standard DIN557 square nut, with a reduced height that makes them suitable for applications where nut height is restricted — such as shallow T-slot channels, thin panel assemblies, and miniature electronics where a full-height square nut would protrude excessively. The 304 A2-70 stainless steel construction provides corrosion resistance for electronics, outdoor, and food processing applications.

Key Specifications

Parameter	Value
Material	304 Stainless Steel
Grade	A2-70
Standard	DIN562 / ISO 4035 equivalent
Shape	Square (four-sided, thin / low profile)
Thread Type	Metric coarse
Size Range	M2.5, M3, M4, M5, M6, M8, M10
Drive	Spanner / socket (across flats)

Why Choose DIN562 Thin Square Nuts?

Low-profile thin body — reduced height vs DIN557; fits shallow T-slot channels and tight clearance applications where full-height square nuts won’t fit
Anti-rotation in channels — square geometry locks against T-slot channel walls; prevents spinning during bolt tightening
304 A2-70 stainless — corrosion-resistant for electronics, outdoor, and food processing applications
M2.5–M10 range — covers miniature electronics (M2.5–M3) through medium T-slot assembly (M8–M10)
DIN562 standard — internationally specified thin square nut; compatible with all standard metric coarse thread bolts

Typical Applications

Shallow T-slot aluminium extrusion channels where DIN557 full-height nut is too tall
Miniature electronics enclosure assembly requiring low-profile nut (M2.5–M4)
Thin panel and sheet metal assembly with restricted nut clearance (M3–M6)
3D printer frame assembly using small extrusion profiles (M3–M5)
Jig and fixture T-slot clamping with limited channel depth (M5–M10)
Food processing and pharmaceutical equipment (304 SS required)

Compatible With

Aluminium extrusion T-slot profiles: 2020 (M3/M4), 3030 (M5/M6), 4040 (M6/M8) series
Standard metric coarse thread bolts and cap screws M2.5–M10
Spanner / socket: M2.5=5mm, M3=5.5mm, M4=7mm, M5=8mm, M6=10mm, M8=13mm, M10=17mm AF

Package Contents

DIN562 thin square nuts in selected size and quantity (per variant)

Frequently Asked Questions

Q: What is the height difference between DIN562 and DIN557?: A: DIN562 thin square nut heights: M3=1.8mm, M4=2.2mm, M5=2.7mm, M6=3.2mm, M8=4.0mm, M10=5.0mm. DIN557 standard heights: M3=2.4mm, M4=3.2mm, M5=4.0mm, M6=5.0mm, M8=6.5mm, M10=8.0mm. DIN562 is approximately 25–40% thinner than DIN557.
Q: Can DIN562 thin square nuts be used in standard T-slot extrusion?: A: Yes. DIN562 thin square nuts fit in standard aluminium extrusion T-slots and provide good anti-rotation performance. They are particularly useful in smaller extrusion profiles (2020, 2040) where the T-slot channel depth is limited.
Q: What is the difference between a thin square nut and a T-slot nut?: A: A T-slot nut is specifically designed for aluminium extrusion T-slots with a profile that slides along the channel. A thin square nut is a general-purpose fastener that can also be used in T-slots. T-slot nuts are easier to insert and slide along the channel; square nuts must be inserted from the end or through a slot opening.