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Home Product M4x22 Cylindrical Head Hexagon Socket Screws, Stainless Steel DIN 7984, Metric Socket Cap Screw for Automotive & Machinery
Cylindrical head hexagon socket screws M4*22

M4x22 Cylindrical Head Hexagon Socket Screws, Stainless Steel DIN 7984, Metric Socket Cap Screw for Automotive & Machinery

M4-22 hex socket screws
Metric cap head socket screws
DIN 7991 M4x22 screws
Cylindrical head hexagon socket screws M4*22
Metric cap head socket screws M4-22 hex socket screws DIN 7991 M4x22 screws with cylindrical head, precision-engineered for secure fastening in machinery, equipment, and structural assembly. Made from high-strength steel with zinc-plated finish, compatible with hex keys. Conforming to DIN 7991 specifications for industrial reliability.
Categories:Fasteners & Fixings
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Product Description

The M4-22 hex socket screws, also known as DIN 7991 M4x22 screws, are metric cap head socket screws featuring a cylindrical head design with a 4mm nominal diameter and 22mm length. These steel fasteners comply with ISO 4762 standards, offering a tensile strength of 8.8-grade (minimum 800MPa) with black oxide surface treatment for corrosion resistance. Designed for 4mm hex key operation, they provide 1.5-2.0Nm torque capacity and withstand temperatures from -50°C to 150°C. Widely used in automotive assemblies, industrial machinery, and precision electronics, these screws enable flush mounting in restricted spaces. Primary advantages include secure fastening in high-vibration environments and compatibility with automated installation systems, though they require specialized tools for head engagement. Typical applications involve securing panels, motor components, and equipment brackets where low-profile fasteners are critical.
ParameterSpecification
DesignationM4-22 hex socket screws
Thread SizeM4 (4mm nominal diameter)
Length22mm ±0.25mm
Head StyleMetric cap head socket screws
Head Diameter7.00mm ±0.18mm
Head Height4.00mm ±0.15mm
Socket Size3mm hex key
MaterialGrade 12.9 alloy steel
Surface FinishBlack oxide coated
Tensile Strength1220 MPa minimum
StandardDIN 7991 M4x22 screws
Thread Pitch0.7mm coarse thread
Shank TypeFull thread up to head
question:Why are the shipping costs high? Are there cheaper shipping options?
answer:Shipping costs depend on carrier rates and destination. We offer economical options like sea/land freight for non-urgent orders.
question:Do you allow payment after delivery?
answer:Standard terms require prepayment or L/C. Flexible payment arrangements may be possible—contact our sales team to discuss.
question:Can shipments be declared at lower values?
answer:We legally comply with all customs regulations and declare actual values. Undervaluing goods is prohibited.
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:Why are the shipping costs high? Are there cheaper shipping options?
answer:Shipping costs depend on carrier rates and destination. We offer economical options like sea/land freight for non-urgent orders.
question:Do you allow payment after delivery?
answer:Standard terms require prepayment or L/C. Flexible payment arrangements may be possible—contact our sales team to discuss.
question:Can shipments be declared at lower values?
answer:We legally comply with all customs regulations and declare actual values. Undervaluing goods is prohibited.
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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