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Home Product M14*140 Half Thread Hex Bolt - Grade 8.8, Zinc Plated, DIN 933, Automotive & Machinery Fastener
Half thread external hexagonal bolt M14*140

M14*140 Half Thread Hex Bolt - Grade 8.8, Zinc Plated, DIN 933, Automotive & Machinery Fastener

M14x140 half thread hex bolt
external hex partial thread bolt
M14-140mm hex head bolt
Half thread external hexagonal bolt M14*140
M14x140 half thread hex bolt, external hex partial thread bolt with M14-140mm hex head bolt design. High-strength steel construction, partial threading for secure fastening. Features a hexagonal head for tool grip. Ideal for machinery, construction, industrial equipment. Combines threaded and non-threaded sections.
Categories:Fasteners & Fixings
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Product Description

The M14x140 half thread hex bolt, also referred to as an external hex partial thread bolt or M14-140mm hex head bolt, is a precision-engineered fastener designed for applications requiring partial engagement and adjustability. This bolt features a hexagonal head with a 21 mm across-flat width, M14 nominal diameter, 140 mm total length, and a partially threaded shank (typically 60 mm thread length). Constructed from grade 8.8 carbon steel or A2-70 stainless steel, it offers tensile strength up to 800 MPa and surface treatments including hot-dip galvanizing or zinc plating for corrosion protection. Operating effectively in temperatures from -50°C to +300°C, this fastener is widely used in structural engineering, machinery assembly, and automotive applications. Its hybrid threaded/unthreaded design provides both secure clamping and axial alignment capabilities, though the partial threading reduces shear strength compared to fully threaded counterparts. The hexagonal head enables standard 22 mm wrench engagement for secure installation in constrained spaces.
ParameterSpecification
Product ModelM14x140 Half Thread Hex Bolt
Thread SizeM14
Total Length140mm
Thread Length60mm (Partial Thread)
Head TypeExternal Hexagon Head
Head Height8.8mm
Hexagon Width21mm
MaterialCarbon Steel Grade 8.8
Surface FinishZinc Plated
Thread Pitch2.0mm
Thread StandardISO 4014 / ISO 898-1
Non-Threaded ShankSmooth Shank (80mm)
Tensile Strength800 MPa
Proof Load830 MPa
Torque Resistance180 Nm
ApplicationHeavy-Duty Machinery & Structural Connections
question:What is the warranty policy?
answer:Products have a one-year warranty covering manufacturing defects. Proof of purchase required for claims.
question:Do you accept payment after delivery?
answer:Prepayment is required. Flexible terms available for long-term clients upon prior agreement.
question:What shipping methods do you support?
answer:We offer DHL, Fedex, UPS, and other major carriers. Client selects preferred option, freight collect.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What is the warranty policy?
answer:Products have a one-year warranty covering manufacturing defects. Proof of purchase required for claims.
question:Do you accept payment after delivery?
answer:Prepayment is required. Flexible terms available for long-term clients upon prior agreement.
question:What shipping methods do you support?
answer:We offer DHL, Fedex, UPS, and other major carriers. Client selects preferred option, freight collect.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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