Core features of M36-M60 Big Size Hex Bolt

Covers size range from M36 to M60, classified as heavy-duty high-strength bolts
Adopts standard hex head design, facilitating high-torque installation with professional tools
Large thread diameter and cross-sectional area provide excellent load-bearing capacity and shear strength, suitable for ultra-heavy load connections
Enhanced structural rigidity and anti-fatigue performance, ensuring stable operation under long-term heavy-load conditions

Product Parameter (Specification)

Standard	DIN,ASTM/ANSI, JIS, EN, ISO,AS	Material	Carbon steel, Stainless Steel, Aluminum,Brass
Surface Treatment	Zinc Plated, Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated	Shank	Full thread, Half thread
Grade	8.8, 10.9, 12.9,B7,B7M,B8,B8M	Size	M36-M64
Unite	Piece	Packing	Bulk cartons with pallet, small boxes in cartons with pallet

Product Application

M36-M64 Big Size Hex Bolt is widely used in heavy Industry, mining, water treatment, healthcare, environmental protection equipment, building, general industry, Oil & Gas, automotive industry etc.

M36-M64 Big Size Hex Bolt Application Scenario Table

Application Field	Specific Application Scenario	Recommended Standards & Grades	Key Considerations
Heavy Construction Machinery	Base fixing of large mining excavators, crawler cranes, and hydraulic shovel main frames.	– ASTM: A490, A354 Gr. BD – ISO: 898-1 Grade 10.9/12.9 – DIN: 7990 Grade 10.9	– Surface treatment: Hot-Dip Galvanizing (HDG) or zinc-nickel plating for outdoor/mine environments. – Match with oversized washers (ASTM F436) to distribute load on thick steel plates.
Large-Scale Steel Structures	Column-base connections of super high-rise buildings , main truss joints of large stadiums, and bridge bearing supports.	– ASTM: A490 , A325 – ISO: 898-1 Grade 10.9 – DIN: 7990 Grade 10.9	– Minimum tensile strength ≥ 1034 MPa (150 ksi) to resist wind/earthquake loads. – For coastal structures: Choose weathering steel to reduce annual maintenance costs.
Energy & Power Equipment	Flange connection of thermal power plant steam turbines (≤400℃), main shaft fixing of onshore wind turbines (≥3MW), and nuclear power plant pressure vessel supports.	– ASTM: A354 Gr. BD , A490 – ISO: 898-1 Grade 12.9, 10.9 – DIN: 7990 Grade 10.9	– Provide material traceability reports (MTR) to meet power industry standards.
Port & Marine Heavy Industry	Base fixing of port container gantry cranes (≥40-ton lifting capacity), offshore platform jacket supports.	– ASTM: A490, A325 – ISO: 898-1 Grade 10.9 – DIN: 7990 Grade 10.9	– Surface treatment: Epoxy paint (≥120μm thickness) + cathodic protection system for marine salt spray. – Prevent hydrogen embrittlement: Avoid galvanization for A490 bolts; use phosphating instead. – Inspect bolt tightness every 6 months in tidal zones.
Heavy Equipment Foundations	Base fastening of steel rolling mills (hot rolling lines), large forging presses (≥10,000 tons), and cement plant rotary kiln supports.	– ASTM: A490 , A354 Gr. BC – ISO: 898-1 Grade 12.9 – DIN: 7990 Grade 10.9	– Preload control: Reach 80% of yield strength to resist vibration from equipment operation. – Embedment requirement: Bolt embedment depth ≥ 2.5× bolt diameter in concrete foundations. – Use anti-loosening nuts to prevent loosening from cyclic loads.

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M36-M64 Big Size Hex Bolt

Typically made of high-quality alloy steel
With quenching and tempering heat treatment to ensure mechanical performance
Classified as heavy-duty high-strength bolts
Belongs to large-size fasteners, designed for matching use with nuts of corresponding specifications

Category: Hex Bolt

Description

Standard	DIN,ASTM/ANSI, JIS, EN, ISO,AS	Material	Carbon steel, Stainless Steel, Aluminum,Brass
Surface Treatment	Zinc Plated, Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated	Shank	Full thread, Half thread
Grade	8.8, 10.9, 12.9,B7,B7M,B8,B8M	Size	M36-M64
Unite	Piece	Packing	Bulk cartons with pallet, small boxes in cartons with pallet

Application Field	Specific Application Scenario	Recommended Standards & Grades	Key Considerations
Heavy Construction Machinery	Base fixing of large mining excavators, crawler cranes, and hydraulic shovel main frames.	– ASTM: A490, A354 Gr. BD – ISO: 898-1 Grade 10.9/12.9 – DIN: 7990 Grade 10.9	– Surface treatment: Hot-Dip Galvanizing (HDG) or zinc-nickel plating for outdoor/mine environments. – Match with oversized washers (ASTM F436) to distribute load on thick steel plates.
Large-Scale Steel Structures	Column-base connections of super high-rise buildings , main truss joints of large stadiums, and bridge bearing supports.	– ASTM: A490 , A325 – ISO: 898-1 Grade 10.9 – DIN: 7990 Grade 10.9	– Minimum tensile strength ≥ 1034 MPa (150 ksi) to resist wind/earthquake loads. – For coastal structures: Choose weathering steel to reduce annual maintenance costs.
Energy & Power Equipment	Flange connection of thermal power plant steam turbines (≤400℃), main shaft fixing of onshore wind turbines (≥3MW), and nuclear power plant pressure vessel supports.	– ASTM: A354 Gr. BD , A490 – ISO: 898-1 Grade 12.9, 10.9 – DIN: 7990 Grade 10.9	– Provide material traceability reports (MTR) to meet power industry standards.
Port & Marine Heavy Industry	Base fixing of port container gantry cranes (≥40-ton lifting capacity), offshore platform jacket supports.	– ASTM: A490, A325 – ISO: 898-1 Grade 10.9 – DIN: 7990 Grade 10.9	– Surface treatment: Epoxy paint (≥120μm thickness) + cathodic protection system for marine salt spray. – Prevent hydrogen embrittlement: Avoid galvanization for A490 bolts; use phosphating instead. – Inspect bolt tightness every 6 months in tidal zones.
Heavy Equipment Foundations	Base fastening of steel rolling mills (hot rolling lines), large forging presses (≥10,000 tons), and cement plant rotary kiln supports.	– ASTM: A490 , A354 Gr. BC – ISO: 898-1 Grade 12.9 – DIN: 7990 Grade 10.9	– Preload control: Reach 80% of yield strength to resist vibration from equipment operation. – Embedment requirement: Bolt embedment depth ≥ 2.5× bolt diameter in concrete foundations. – Use anti-loosening nuts to prevent loosening from cyclic loads.

M36-M64 Big Size Hex Bolt

M36-M64 Big Size Hex Bolt Application Scenario Table

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