Hex Flange Screws M5x16 | Hexagonal Flange Bolts DIN 6921, A2-70 Stainless Steel, BoltPro HD Series

Hex flange screw M5x16

DIN 6921 hex bolt

M5-16 flange screw

Hexagonal flange screws M5*16

Hex flange screw M5x16, DIN 6921 hex bolt standard. M5-16 flange screw features integrated washer for vibration-resistant fastening in machinery and automotive applications. High-strength steel with corrosion-resistant finish.

Specification

SEODescription

The Hex flange screw M5x16, compliant with DIN 6921 hex bolt standards, is a M5-16 flange screw designed for robust mechanical fastening. Featuring a hexagonal head with an integrated flange (M5 thread, 16 mm length), it eliminates the need for separate washers. Constructed from high-strength steel (grade 8.8 or higher) with optional zinc-plated or stainless steel finishes, it operates in temperatures from -50°C to +150°C. Widely used in automotive, machinery, and electronics, its flange distributes load evenly, enhancing vibration resistance. The M5x16 DIN 6921 bolt supports torque ranges of 4-5 Nm but requires precise alignment during installation. Limitations include limited suitability for ultra-high-temperature environments beyond coating specifications.

SEOSpecification

Parameter	Specification
Product Type	Hex flange screw M5x16
Standard	DIN 6921 hex bolt
Material	Carbon steel (Grade 8.8)
Surface Treatment	Zinc-plated
Thread Diameter	M5 (5mm)
Length Under Head	16mm
Flange Diameter	11.3mm
Head Height	3.35mm
Hexagon Size	8mm (AF)
Thread Pitch	0.8mm
Flange Thickness	1.1mm
Torque Value	5.5 Nm (Grade 8.8)
Alternative Designation	M5-16 flange screw

SEOQandA

question:What is the warranty policy?
answer:Our products come with a standard 1-year warranty covering manufacturing defects. Contact us for details.
question:Do you accept payment after delivery?
answer:Yes, we offer payment after delivery for trusted clients. Terms are outlined in the contract.
question:Can you provide technical selection services?
answer:Yes, we provide technical selection services to help you choose the best product solutions.

SEOQandA_Product

question:What causes M5*16 hexagonal flange screws to loosen over time?
answer:Vibration or insufficient torque. Apply thread-locking adhesive during installation.
question:How to prevent M5*16 flange screws from damaging soft materials?
answer:Use washers to distribute load evenly and reduce surface pressure.
question:Why do M5*16 screws corrode in humid environments?
answer:Material incompatibility. Opt for stainless steel or coated screws.
question:How to fix stripped threads in M5*16 hexagonal flange screws?
answer:Replace damaged screws and use thread repair kits for the mating part.
question:What causes difficulty in tightening M5*16 flange screws?
answer:Misaligned threads or debris. Clean threads and ensure proper alignment before tightening.