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Home Product M12*90 Half Thread Hex Bolt Partial Thread High Tensile Grade 8.8 Carbon Steel Fastener
Half thread external hexagonal bolt M12*90

M12*90 Half Thread Hex Bolt Partial Thread High Tensile Grade 8.8 Carbon Steel Fastener

M12x90 half thread hex bolt
half thread external hex bolt
M12x90 hex head bolt
Half thread external hexagonal bolt M12*90
M12x90 half thread hex bolt, also known as half thread external hex bolt, features a hexagonal head for easy installation. Partial threading provides grip control in structural or mechanical assemblies. M12x90 hex head bolt made from high-strength steel with corrosion-resistant finish. Designed for applications requiring secure fastening with adjustable unthreaded shank length.
Categories:Fasteners & Fixings
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Product Description

The M12x90 half thread hex bolt is a high-strength fastener designed for industrial applications requiring partial threading and secure external hexagonal head engagement. This half thread external hex bolt features an M12x90 hex head bolt configuration with a nominal diameter of 12mm, 90mm overall length, and threaded portion occupying approximately 50% of the shank. Manufactured from grade 8.8 carbon steel or A2/A4 stainless steel, it operates effectively in temperatures ranging from -50°C to +150°C and withstands corrosion in harsh environments. The M12x90 half thread hex bolt excels in mechanical, automotive, and structural assemblies where vibration resistance and controlled clamping force distribution are critical. Key advantages include optimized load-bearing capacity through its unthreaded shoulder section, tool compatibility with standard hex wrenches, and zinc-plated/sherardized surface finishes. Limitations involve reduced adjustability compared to fully threaded counterparts. Typical installations include machinery bases, bracket mounting systems, and equipment requiring precise thread engagement length control.
Parameter Specification
Product Type Half Thread External Hexagonal Bolt
Nominal Size M12x90
Thread Length 18mm (Approx. 1.5×D)
Hex Head Width 19mm (Across Flats)
Material Grade Carbon Steel 8.8 / Stainless Steel A2-70
Thread Pitch 1.75mm (Standard Coarse Thread)
Shank Length 90mm (Total)
Surface Treatment Zinc Plated / Hot-Dip Galvanized / Plain
Standard Compliance DIN 933 / ISO 4014 / ANSI B18.2.1
Torque Capacity 89 Nm (Lubricated, 8.8 Grade)
Flange Dimension 19mm Width × 7.5mm Height
Weight Range 120g ±5% (Carbon Steel)
question:How is after-sales handled if a refurbished product malfunctions?
answer:We will replace or refund refurbished products confirmed to be inauthentic. Genuine items receive full repair or replacement.
question:Can you provide shipment photos, purchase dates, etc., for similar products?
answer:Yes, we can share shipment photos and purchase details upon request, subject to confidentiality agreements.
question:What is the warranty coverage?
answer:Warranty covers defects in materials/workmanship for 12 months from purchase date. Proof of purchase required.
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:How is after-sales handled if a refurbished product malfunctions?
answer:We will replace or refund refurbished products confirmed to be inauthentic. Genuine items receive full repair or replacement.
question:Can you provide shipment photos, purchase dates, etc., for similar products?
answer:Yes, we can share shipment photos and purchase details upon request, subject to confidentiality agreements.
question:What is the warranty coverage?
answer:Warranty covers defects in materials/workmanship for 12 months from purchase date. Proof of purchase required.
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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