BRK INDUSTRIES • PRECISION FASTENERS EXPORTER INDIA

Threaded Bars DIN 976-1 in 10.9, 8.8, 5.6 Steel Manufacturer India

Equivalent Standards: DIN 975 (withdrawn) | ISO 898-1 | ASTM A193 B7 | ASTM A307

DIN 976-1 Threaded Bars (formerly DIN 975) are continuous headless metric fasteners threaded along their entire length. BRK Industries manufactures high-precision all-thread rods in low-carbon steel (Classes 4.6, 5.6), high-tensile alloy steel (Classes 8.8, 10.9, 12.9), austenitic stainless steel (A2-70 / 304 & A4-80 / 316 Marine Grade), and ASTM A193 B7. Standard diameters range from M2 to M52 in stock lengths of 1000 mm, 2000 mm, 3000 mm and custom cut-to-length studs.

Diameter Range

M2 to M52

Coarse & fine pitch

Standard Lengths

1m, 2m, 3m

Custom cut-to-size

Coatings

HDG & Zinc

Geomet, Dacromet

Calculate Total Weight View M2–M52 Weight Chart ↓

Original Factory Product

BRK Fully Threaded Rod (DIN 976-1)

Export Ready Stock

BRK Threaded Bars DIN 976-1 Manufacturer India

Grade 8.8 • 10.9 • Stainless Steel M2 to M52

Thread Fit: ISO 68-1 Metric Coarse (6g)

Tensile Range: 400 to 1400 MPa

CE & ISO 9001:2015 Certified EN 10204 3.1 MTC Included

Engineering Dimensions & Geometry

Technical Specification for DIN 976-1 Threaded Bars

Dimensional definitions, thread tolerances, and point specifications conforming to DIN 976-1 (Metric coarse pitch, Part 1) and international standard ISO 898-1.

DIN 976-1 Dimensional Blueprint (d, P, L)

Standard metric coarse continuous thread over entire length L, with symmetrical 60° triangular thread profile (ISO 68-1).

d — Nominal Diameter M2 to M52

Major thread diameter in millimeters. Thread tolerance class 6g before coating ensures optimal nut engagement.

P — Thread Pitch 0.40 – 5.00 mm

Metric coarse pitch per DIN 13-1. Metric fine pitch is also manufactured on request per DIN 976-2.

L — Nominal Length 1m, 2m, 3m & Cut

Stock lengths of 1000 mm, 2000 mm, and 3000 mm. Custom cut-to-length studs (50 mm to 6000 mm) with chamfered leads.

Complete Engineering Weight Matrix (M2 – M52)

DIN 976-1 Specification & Theoretical Weight Chart

Theoretical weights per 1,000 pieces (1000 mm standard length), nominal pitch, stress area, and proof tensile loads according to DIN 976-1 / DIN 975.

Swipe left or right to view all table columns.

Nominal Dia (d)	Coarse Pitch (P)	Fine Pitch Option	Length (L)	Weight (kg / 1000 pcs)	Unit Weight (kg/m)	Stress Area (A_s mm²)	Yield Load (8.8 kN)
M2	0.40 mm	—	1000 mm	18.7 kg	0.019 kg/m	2.07	1.66 kN
M2.5	0.45 mm	—	1000 mm	30.0 kg	0.030 kg/m	3.39	2.71 kN
M3	0.50 mm	—	1000 mm	44.0 kg	0.044 kg/m	5.03	4.02 kN
M3.5	0.60 mm	—	1000 mm	60.0 kg	0.060 kg/m	6.78	5.42 kN
M4	0.70 mm	—	1000 mm	78.0 kg	0.078 kg/m	8.78	7.02 kN
M5	0.80 mm	—	1000 mm	124.0 kg	0.124 kg/m	14.2	11.36 kN
M6	1.00 mm	—	1000 mm	177.0 kg	0.177 kg/m	20.1	16.08 kN
M8	1.25 mm	1.00 mm	1000 mm	319.0 kg	0.319 kg/m	36.6	29.28 kN
M10	1.50 mm	1.00 / 1.25 mm	1000 mm	500.0 kg	0.500 kg/m	58.0	46.40 kN
M12	1.75 mm	1.25 / 1.50 mm	1000 mm	725.0 kg	0.725 kg/m	84.3	67.44 kN
M14	2.00 mm	1.50 mm	1000 mm	970.0 kg	0.970 kg/m	115.0	92.00 kN
M16	2.00 mm	1.50 mm	1000 mm	1,330.0 kg	1.330 kg/m	157.0	125.60 kN
M18	2.50 mm	1.50 / 2.00 mm	1000 mm	1,650.0 kg	1.650 kg/m	192.0	153.60 kN
M20	2.50 mm	1.50 / 2.00 mm	1000 mm	2,080.0 kg	2.080 kg/m	245.0	196.00 kN
M22	2.50 mm	1.50 / 2.00 mm	1000 mm	2,540.0 kg	2.540 kg/m	303.0	242.40 kN
M24	3.00 mm	2.00 mm	1000 mm	3,000.0 kg	3.000 kg/m	353.0	282.40 kN
M27	3.00 mm	2.00 mm	1000 mm	3,850.0 kg	3.850 kg/m	459.0	367.20 kN
M30	3.50 mm	2.00 mm	1000 mm	4,750.0 kg	4.750 kg/m	561.0	448.80 kN
M33	3.50 mm	2.00 mm	1000 mm	5,900.0 kg	5.900 kg/m	694.0	555.20 kN
M36	4.00 mm	3.00 mm	1000 mm	6,900.0 kg	6.900 kg/m	817.0	653.60 kN
M42	4.50 mm	3.00 mm	1000 mm	9,400.0 kg	9.400 kg/m	1,121.0	896.80 kN
M48	5.00 mm	3.00 mm	1000 mm	12,400.0 kg	12.400 kg/m	1,473.0	1,178.40 kN
M52	5.00 mm	3.00 mm	1000 mm	14,700.0 kg	14.700 kg/m	1,758.0	1,406.40 kN

Fastener Estimation Tool

Interactive Fastener Weight & Quantity Estimator

Select diameter, length, property class, and quantity to calculate net shipment weights and export bundle allocations.

Diameter (Metric)

Bar Length

Steel Grade

Protective Finish

Estimate uses the chart's base theoretical steel weight. Actual material density and coating allowance may change the final shipment weight.

Order Quantity (Pieces)

Calculated Output M16 × 1000mm

Total Net Shipment Weight:

684.95 kg

≈ 1,510.0 lbs (0.685 MT)

Unit Weight: 1.370 kg/bar

Total Length: 500 m

Metallurgical Performance

Steel Property Classes & Tensile Ratings (ISO 898-1)

Class / Grade	Tensile Strength (R_m)	Yield Strength (R_e)	Min Elongation	Hardness	Common Application
Class 4.6	400 MPa min	240 MPa min	22%	120 - 180 HB	HVAC ceiling hangers, utility piping, general framing.
Class 5.6	500 MPa min	300 MPa min	20%	130 - 220 HB	Standard construction anchor bolts, timber joints.
Class 8.8 (HT)	800 - 1000 MPa	640 MPa min	12%	22 - 32 HRC	Structural steel framing, bridge anchorages, machinery.
Class 10.9 (HT)	1040 - 1200 MPa	940 MPa min	9%	32 - 39 HRC	Dynamic vehicle chassis, wind towers, heavy equipment.
Class 12.9	1220 - 1400 MPa	1100 MPa min	8%	39 - 44 HRC	Extreme hydraulic cylinder tie rods, die clamp bolts.
SS A4-80 (316)	800 MPa min	600 MPa min	0.3 d min	240 HV max	Saltwater immersion, marine docks, coastal splash zones.
ASTM A193 B7	860 MPa min	720 MPa min	16%	321 HB max	High-temperature pressure vessels, oil & gas flanged piping.

Corrosion Prevention

Surface Protective Finishes

Hot Dip Galvanized (HDG)

ISO 10684 • 45–85 μm

Thick metallurgical zinc layer for 30–50+ years of maintenance-free outdoor durability. 1000+ salt spray hours.

Electro Zinc Plated (CR3)

ISO 4042 • 5–15 μm

Smooth bright finish with clear or yellow trivalent passivation. Ideal for indoor equipment and cost-efficient installation.

Geomet 321 / Dacromet

ISO 10683 • 8–12 μm

Non-electrolytic zinc flake with zero risk of hydrogen embrittlement. Ideal for high tensile Grade 10.9 & 12.9 rods.

Industrial Deployments

Applications Across Global Industries

Export Packaging

Standard Wooden Crates & Heavy Wrapped Bundles

Civil & Steel Infrastructure

Foundation anchoring, concrete column embedment, bridge retrofits, and precast wall bracing.

HVAC, Plumbing & Piping

Continuous all-thread rods for suspending overhead ducts, heavy water pipes, and fire suppression mains.

Marine & Coastal Works

Stainless Steel A4-80 (316) bars for sea intake structures, docks, boat lifts, and desalination tanks.

Automotive & Solar Racking

Grade 8.8 & 10.9 high-torque tie bars for truck suspension and ground-mount solar tracker frames.

Technical Reference (AEO)

Frequently Asked Questions on DIN 976-1 Threaded Bars

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Factory unit: C-65, Focal Point, Ludhiana-141010, Punjab, India • Phone: +91-161-2672041 / +91-9888200801 • enquiry@brknutsbolts.com

BRK INDUSTRIES