MF FASTENER INDUSTRIES LLC Manufacturer of anchor bolts, studs & plate washers · Importer & stockist of fasteners

Technical datasheet DIN 975 / DIN 976-1 — Threaded bar, metric coarse

Reference only — for design, verification or contractual purposes refer to the current issue of the original standard. MF Fastener Industries LLC · sales@mfindllc.com · +971 6 767 2469 · mfindllc.com

HOME / DATA & DRAWINGS / DIN 975

Dimensional datasheet

DIN 975 threaded bar

Fully threaded rod, metric coarse, supplied in standard lengths and cut to size. Used for hangers, supports, tie rods, U-bolt replacements and anywhere a bolt of non-standard length is needed. Also called studding or all-thread.

View the product Get a quote

d nominal thread diameterP thread pitchL bar length

Dimensions

millimetres

Metric coarse thread, tolerance 6g as standard. Weights are for carbon steel at 7.85 g/cm³ and are close enough for freight and packing; treat them as approximate.

Size	Pitch P	Tensile stress area	Weight per metre	Weight per 3 m bar
M6	1.00	20.1 mm²	0.20 kg	0.60 kg
M8	1.25	36.6 mm²	0.35 kg	1.05 kg
M10	1.50	58.0 mm²	0.55 kg	1.65 kg
M12	1.75	84.3 mm²	0.79 kg	2.37 kg
M16	2.00	157 mm²	1.42 kg	4.26 kg
M20	2.50	245 mm²	2.23 kg	6.69 kg
M24	3.00	353 mm²	3.20 kg	9.60 kg
M30	3.50	561 mm²	5.05 kg	15.15 kg
M36	4.00	817 mm²	7.30 kg	21.90 kg

Design from the stress area, not the diameter

Load capacity is calculated on the tensile stress area. M12 at 84.3 mm² in class 8.8 gives roughly 50 kN at proof load. Apply your own design factor — this sheet is not a design calculation.

Threaded bar is not a stud bolt

Flanged joints in pipework and pressure vessels normally call for a stud bolt to ASTM A193 B7 with A194 2H nuts — controlled alloy, heat treated, certified against the heat number. DIN 975 bar is not the same product. If the drawing says B7, order B7.

Property classes

ISO 898-1

Class	Tensile strength Rm min	Yield Rp0.2 min	Typical use
4.6	400 N/mm²	240 N/mm²	General hangers and supports
4.8	400 N/mm²	340 N/mm²	Common commercial studding
8.8	800 N/mm²	640 N/mm²	Structural and load-bearing
10.9	1040 N/mm²	940 N/mm²	High duty
A2-70 / A4-80	700 / 800 N/mm²	450 / 600 N/mm²	Stainless, corrosive service

Much commercial threaded bar is class 4.8 and unmarked. If the application is load-bearing, specify the class and ask for the certificate — do not assume.

At a glance

Standard	DIN 975 · DIN 976-1 · ISO 898-1
Form	Fully threaded rod, no head
Thread form	Metric coarse, ISO 68-1
Tolerance	6g as standard
Stock length	1000 mm · 2000 and 3000 mm on request
Cut to length	DIN 976-1 — cut, chamfered, dressed, +0 / −2 mm
Matching nut	DIN 934 · ISO 4032
Matching washer	DIN 125A · ISO 7089
Alloy stud version	ASTM A193 B7 with A194 2H nuts

Supply

Threaded bar is imported and held in stock. Stud bolts and bar cut to your drawing are manufactured at our own plant — cut, threaded, chamfered and coated to the length you specify. A cut bar will not take a nut cleanly unless the end is dressed, so tell us the finished length rather than cutting on site.

Materials and finish

Carbon steel	Plain, zinc plated, hot-dip galvanized
Stainless	A2-70, A4-80
High tensile	8.8, 10.9
Alloy	ASTM A193 B7, B7M, B16
Certification	Mill certificate against lot and heat number

Galvanized bar needs an oversize-tapped galvanized nut. Order them together — a plain nut will not run onto a galvanized thread.

Testing

Dimensional and thread inspection is carried out in our own plant on calibrated instruments. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories.

Reference only

This datasheet is published for reference. Dimensions and property values are reproduced in good faith from published standards, but for design, verification or contractual purposes always refer to the current issue of the original standard.

If a figure here conflicts with the standard, the standard governs.

Need a quotation?

Send the size, class, coating, finished length and quantity. If the bar is going into a flanged joint, send the piping specification instead — it may call for B7.