FIG. 3.09Nuts · NXB-SQN

Square Nuts

Four bearing flats give greater surface contact and resist spinning when seated in a channel or held by hand; classic for strut, timber, and railway fixings.

Conforms to

DIN 557DIN 562ASME B18.2.2

Size rangeM4–M24 · #8–1"

FIG. 3.09Drawn to standard

Square Nuts — representative profile, dimensioned to standard

Square Nuts — representative product photograph — PLATESquare Nuts — as supplied

FIG. SPECAt a glance

Size rangeM4–M24 · #8–1"

Materials2 options

Finishes3 options

Standards3 refs

Applications5 typical

FamilyNuts

Four flats for greater wrench grip and channel seating.

FIG. TBLSpecifications

Representative specifications

A cross-section of stocked configurations. Not exhaustive — diameters, lengths, grades, and finishes extend across the full range on request.

Diameter	Thread	Material	Finish	Grade	Standard	Tensile
M8	1.25 coarse	Carbon Steel	Zinc Plated	Class 5	DIN 557	—
M10	1.5 coarse	Carbon Steel	Plain	Class 6 (thin)	DIN 562	—
1/2"	13 UNC	Carbon Steel	Black Oxide	Carbon steel	ASME B18.2.2	—
M12	1.75 coarse	Stainless 304	Plain	A2	DIN 557	500 MPa

Representative specifications — not exhaustive · NXB-SQN

FIG. SELSelection

Materials, finishes & where it works

Match the line to the load, the environment, and the standard it answers to.

Materials

Carbon SteelStainless 304

Finishes

Zinc PlatedPlainBlack Oxide

Standards

DIN 557DIN 562ASME B18.2.2

Typical applications

Strut and channel framing
Timber and railway fixing
Weld-on and captive nuts
Sign and fence assembly
Heavy machinery brackets

Served industries

Construction OEM & Assembly

FIG. RELRelated lines

Pairs & alternatives

Mating parts and adjacent lines engineers reach for alongside this one.

FIG. 3.07NXB-TNT

T-Nuts

Pronged flange embeds in wood for a durable metal thread.

M4–M10 · #8–3/8"

FIG. 3.01NXB-HXN

Hex Nuts

The standard six-sided nut for threaded assemblies.

M3–M48 · #4–2"

FIG. 3.06NXB-CPL

Coupling Nuts

Long hex body joins two lengths of male thread.

M6–M24 · 1/4"–1"

FIG. 4.01NXB-FLW

Flat Washers

Spreads clamp load and protects the bearing surface.

M3–M36 · #6–1-1/2"

FIG. CTATalk to sales

Spec square nuts for your next build.

Grade, material, finish, and standard — matched to your joint and quoted from stock. Tell us the load case and we’ll confirm the line.

Talk to sales about Square Nuts Back to the range

Diameter

Thread

Material

Finish

Grade

Standard

Tensile

1.25 coarse

Carbon Steel

Zinc Plated

Class 5

DIN 557

—

M10

1.5 coarse

Carbon Steel

Plain

Class 6 (thin)

DIN 562

—

1/2"

13 UNC

Carbon Steel

Black Oxide

Carbon steel

ASME B18.2.2

—

M12

1.75 coarse

Stainless 304

Plain

DIN 557

500 MPa