Products

Explore our fastener catalog built for industrial reliability and project efficiency.

M8x40mm M8x45mm DIN933 DIN931 Carbon Steel Hex Bolts Hot Dip Galvanized

M8x40mm M8x45mm DIN933 DIN931 Carbon Steel Hex Bolts Hot Dip Galvanized

These M8-M72 carbon steel hex bolts are available in DIN933 and DIN931 standards, with grade options from 4.8 to 12.9 and finishes including plain, zinc plated, black, and hot dip galvanized. They are suitable for machinery, construction, steel structures, and bulk fastener supply.

Grade:4.8 / 6.8 / 8.8 / 10.9 / 12.9
Material:Carbon Steel
Standard:Also 933, 931, too, ASME, GB, JIS, ISO
DIN 933 Hot Dip Galvanized Carbon Steel Hex Bolts Grade 8.8 M12 M14 M16 M18 M20

DIN 933 Hot Dip Galvanized Carbon Steel Hex Bolts Grade 8.8 M12 M14 M16 M18 M20

These DIN 933 hot dip galvanized carbon steel hex bolts are made for strong metric fastening in construction, steel structure, machinery, and industrial assembly. Main sizes include M12, M14, M16, M18, and M20, with grade 8.8 as the key strength option and additional grades available for different project requirements.

Grade:4.8 / 8.8 / 10.9 / 12.9
Material:Carbon Steel
Standard:DIN 933,DIN, ASME, GB, JIS, ISO
HDG Carbon Steel Hex Head Bolts Grade 4.8 8.8 ASTM A193 B7

HDG Carbon Steel Hex Head Bolts Grade 4.8 8.8 ASTM A193 B7

These HDG carbon steel hex head bolts are designed for industrial fastening, construction hardware, machinery assembly, and bulk bolt-and-nut supply. The product supports grades 4.8, 6.8, 8.8, 10.9, and 12.9, with M8-M36 sizes, 20-200mm lengths, UNC thread type, and hot dip galvanized surface treatment.

Grade:4.8 / 6.8 / 8.8 / 10.9 / 12.9
Material:Carbon Steel
Standard:DIN, ASME, GB, JIS, ISO
DIN931 DIN933 M16x100 M16x80 Hot Dip Galvanized Carbon Steel Hex Bolts Grade 8.8

DIN931 DIN933 M16x100 M16x80 Hot Dip Galvanized Carbon Steel Hex Bolts Grade 8.8

These DIN931 DIN933 hot dip galvanized carbon steel hex bolts are available in M16x100mm and M16x80mm, with grade options including 4.8, 6.8, and 8.8. They are suitable for construction, machinery, steel structure, equipment assembly, and wholesale fastener supply.

Grade:4.8 / 6.8 / 8.8
Material:Carbon Steel
Standard:DIN931、DIN933,DIN,ANSI,ASME,JIS,ISO
DIN933 Zinc Plated Carbon Steel Hex Bolt and Nut Set Grade 10.9 GB Standard Various Lengths

DIN933 Zinc Plated Carbon Steel Hex Bolt and Nut Set Grade 10.9 GB Standard Various Lengths

DIN933 zinc plated carbon steel hex bolt and nut set with grade 10.9 main option, available grades 4.8, 6.8, 8.8, 10.9 and 12.9, M3-M72 size range, GB, DIN, ISO, ASME and industrial standard options.

Grade:4.8 / 6.8 / 8.8 / 10.9 / 12.9
Material:Carbon Steel
Standard:DIN933,DIN, ASME, GB, ISO
DIN126 Hot Dip Galvanized Class C Enlarged Inner Hole Flat Washers

DIN126 Hot Dip Galvanized Class C Enlarged Inner Hole Flat Washers

DIN126 Class C hot dip galvanized steel flat washers with enlarged inner hole options, including Type A and Type B dimensions, for construction, steel structures, machinery, and industrial fastening.

Grade:Class C
Material:Type A and Type B
Standard:DIN126
DIN127 Yellow Zinc Plated High Strength Split Spring Lock Washers Grade 8.8

DIN127 Yellow Zinc Plated High Strength Split Spring Lock Washers Grade 8.8

DIN127 yellow zinc plated high strength split spring lock washers, grade 8.8, for bolts, nuts, machinery, construction, steel structure, equipment assembly, and industrial fastening applications.

Grade:eight point eight
Material:Steel
Standard:DIN127
DIN127 Zinc Plated Split Spring Lock Washers Steel Fasteners

DIN127 Zinc Plated Split Spring Lock Washers Steel Fasteners

DIN127 zinc plated steel split spring lock washers for bolts, nuts, machinery, construction, steel structure, equipment assembly, and industrial fastening. Bulk supply from Handan, Hebei, China.

Grade:eight point eight
Material:Steel, carbon steel
Standard:DIN127
DIN25201 Hot Dip Galvanized Double Stack Self Locking Washers

DIN25201 Hot Dip Galvanized Double Stack Self Locking Washers

DIN25201 hot dip galvanized steel double stack self locking wedge washers for heavy-duty bolts, machinery, steel structures, construction, railway, equipment assembly, and vibration-resistant fastening.

Grade:DIN25201
Material:Steel
Standard:DIN25201
Quality Assurance

ISO 9001 Certified HDG Fastener Manufacturing

Advanced hot-dip galvanizing lines and cold-forging facilities ensuring superior corrosion resistance and dimensional precision.

Automated Production Lines

Automated Production Lines

High-capacity cold forging and thread rolling units operating 24/7.

ISO 9001:2015 Certified

ISO 9001:2015 Certified

Strict adherence to international quality management system standards.

Advanced Metrology Lab

Advanced Metrology Lab

Comprehensive testing for dimensions, tensile strength, and hardness.

Global Logistics Hub

Global Logistics Hub

Digital inventory tracking ensuring 99% order accuracy and timely dispatch.

Global Clients

Trusted by HDG Fastener Buyers Worldwide

International buyers rely on our hot dip galvanized fasteners for critical infrastructure and industrial projects.

Maria Santos

COMPANY::Pacific Build Solutions Inc.

Philippines The team was helpful during the quotation stage and gave us practical suggestions for our customized requirement. The products arrived in good condition and met our project needs.

Rafael Oliveira

COMPANY::Oliveira Componentes Industriais Ltda.

Brazil The bulk order was consistent with the approved sample. We were satisfied with the product finishing, packaging, and the supplier's attention to our order details.

Joseph Mwangi

COMPANY::Eastline Industrial Solutions Ltd.

Kenya The quality was stable, and the delivery schedule was handled professionally. We appreciated that they provided updates without us having to follow up repeatedly.

Chinedu Okafor

COMPANY::Lagos Industrial Procurement Ltd.

Nigeria We were pleased with the sample and decided to proceed with a larger order. The products were delivered in good condition and were consistent with the specifications we confirmed.

Lim Wei Jian

COMPANY::Meridian Engineering Supplies Sdn. Bhd.

Malaysia Their communication was professional and efficient. They understood our specifications well and delivered the order according to the confirmed requirements.

Maria Santos

COMPANY::Pacific Build Solutions Inc.

Philippines The team was helpful during the quotation stage and gave us practical suggestions for our customized requirement. The products arrived in good condition and met our project needs.

Rafael Oliveira

COMPANY::Oliveira Componentes Industriais Ltda.

Brazil The bulk order was consistent with the approved sample. We were satisfied with the product finishing, packaging, and the supplier's attention to our order details.

Joseph Mwangi

COMPANY::Eastline Industrial Solutions Ltd.

Kenya The quality was stable, and the delivery schedule was handled professionally. We appreciated that they provided updates without us having to follow up repeatedly.

Chinedu Okafor

COMPANY::Lagos Industrial Procurement Ltd.

Nigeria We were pleased with the sample and decided to proceed with a larger order. The products were delivered in good condition and were consistent with the specifications we confirmed.

Lim Wei Jian

COMPANY::Meridian Engineering Supplies Sdn. Bhd.

Malaysia Their communication was professional and efficient. They understood our specifications well and delivered the order according to the confirmed requirements.

Maria Santos

COMPANY::Pacific Build Solutions Inc.

Philippines The team was helpful during the quotation stage and gave us practical suggestions for our customized requirement. The products arrived in good condition and met our project needs.

Rafael Oliveira

COMPANY::Oliveira Componentes Industriais Ltda.

Brazil The bulk order was consistent with the approved sample. We were satisfied with the product finishing, packaging, and the supplier's attention to our order details.

Joseph Mwangi

COMPANY::Eastline Industrial Solutions Ltd.

Kenya The quality was stable, and the delivery schedule was handled professionally. We appreciated that they provided updates without us having to follow up repeatedly.

Chinedu Okafor

COMPANY::Lagos Industrial Procurement Ltd.

Nigeria We were pleased with the sample and decided to proceed with a larger order. The products were delivered in good condition and were consistent with the specifications we confirmed.

Lim Wei Jian

COMPANY::Meridian Engineering Supplies Sdn. Bhd.

Malaysia Their communication was professional and efficient. They understood our specifications well and delivered the order according to the confirmed requirements.

Maria Santos

COMPANY::Pacific Build Solutions Inc.

Philippines The team was helpful during the quotation stage and gave us practical suggestions for our customized requirement. The products arrived in good condition and met our project needs.

Rafael Oliveira

COMPANY::Oliveira Componentes Industriais Ltda.

Brazil The bulk order was consistent with the approved sample. We were satisfied with the product finishing, packaging, and the supplier's attention to our order details.

Joseph Mwangi

COMPANY::Eastline Industrial Solutions Ltd.

Kenya The quality was stable, and the delivery schedule was handled professionally. We appreciated that they provided updates without us having to follow up repeatedly.

Chinedu Okafor

COMPANY::Lagos Industrial Procurement Ltd.

Nigeria We were pleased with the sample and decided to proceed with a larger order. The products were delivered in good condition and were consistent with the specifications we confirmed.

Lim Wei Jian

COMPANY::Meridian Engineering Supplies Sdn. Bhd.

Malaysia Their communication was professional and efficient. They understood our specifications well and delivered the order according to the confirmed requirements.

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HDG Knowledge Base

HDG Hot Dip Galvanizing FAQ

Technical answers about hot dip galvanized fastener specifications, standards and procurement.

Industrial fasteners are precision-engineered mechanical components — including bolts, screws, nuts, washers, anchors, and rivets — used to join or secure materials in construction, automotive, aerospace, and heavy machinery. They are manufactured to international standards such as DIN, ANSI, ISO, and JIS, and are available in carbon steel, stainless steel, alloy steel, and brass with various surface finishes.

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