Metric Socket Screws

Metric Socket Head Cap Screws

Metric socket head cap screws are the workhorses of the socket screw family. With tall cylindrical heads and internal hex drives, they allow installers to apply high torque with reduced risk of stripping. These screws are trusted in machinery, tools, and industrial assemblies where clamping strength and repeatability are essential. They are used in structural builds, heavy equipment, and automation setups where vibration resistance and long service life are critical.

Metric Flat Socket Cap Screws

Metric flat socket cap screws are designed with countersunk heads that sit flush with the material surface once installed. This flush finish makes them perfect for enclosures, panels, and brackets where a smooth appearance is required. They are widely used in aerospace, electronics, and safety-critical equipment where protruding heads could interfere with movement or create hazards.

Metric Button Socket Cap Screws

Metric button socket cap screws feature a domed, low-profile head that provides a clean appearance while still offering strength. These screws distribute load across a wider area, making them ideal for fastening into softer materials like aluminum, plastic, or composites. They are commonly found in furniture, decorative assemblies, and consumer products where aesthetics matter but holding power cannot be sacrificed.

Metric Low Head Socket Cap Screws

Metric low head socket cap screws are built for tight-clearance applications. Their reduced head height allows them to fit into spaces where standard socket head cap screws would interfere. These fasteners are relied on in aerospace, automotive, and compact machinery where every millimeter of clearance counts, but torque and holding strength still matter.

Metric Socket Shoulder Cap Screws

Also known as stripper bolts, metric socket shoulder cap screws are unique because of their unthreaded shoulder. This shoulder serves as a pivot, shaft, or bearing surface in mechanical assemblies. They are essential in jigs, fixtures, and automation systems where components must rotate or align precisely. Engineers choose them when exact spacing and repeatability are needed.

Metric Cup Point Set Screws

Metric cup point set screws have concave tips that bite securely into mating surfaces, creating strong grip in shafts, pulleys, and collars. They are used in applications exposed to vibration and rotation, providing semi-permanent fastening that resists loosening over time. Cup point set screws are the standard choice when holding strength under dynamic conditions is required.

Metric Cone Point Set Screws

Metric cone point set screws taper to a sharp point for precise positioning. They are widely used to locate parts accurately or apply controlled pressure without distorting the contact surface. These screws are favored in tooling and alignment applications where exact placement is critical.

Metric Dog Point Set Screws

Metric dog point set screws feature a flat tip with an extended shoulder designed to lock into mating holes. This ensures repeatable positioning, making them ideal for gears, pulleys, and collars that must be removed and reassembled consistently. They provide secure alignment and positive locking in mechanical assemblies.

Metric Flat Point Set Screws

Metric flat point set screws offer secure fastening with a flush, smooth contact surface. They are chosen for applications where surface damage must be avoided but holding strength is still required. Flat point screws are often used in precision assemblies where minimal marking is important.

Metric Nylon Tip Set Screws

Metric nylon tip set screws combine the strength of steel with a protective nylon tip. These fasteners prevent scratching or deformation on delicate surfaces while still delivering holding power. They are trusted in electronics, optics, and sensitive assemblies where surface integrity is critical.

Metric Brass Tip Set Screws

Metric brass tip set screws provide a softer contact point that prevents damage to mating components. They also offer corrosion resistance, making them useful in adjustment applications and non-metallic assemblies. These are often used where repeat adjustments must be made without wearing out the fastened surface.

Metric Knurled Cup Set Screws

Metric knurled cup set screws feature a textured cup point for aggressive grip in dynamic assemblies. The knurling increases friction and bite, making them ideal for motors, rotating shafts, and high-vibration applications. They provide maximum holding strength in conditions where standard set screws may loosen.

Material Options

South Coast Fasteners stocks metric socket screws in materials designed for strength, durability, and corrosion resistance.

Class 45H Alloy Steel

Hardened for maximum toughness and load capacity, Class 45H alloy steel socket screws are widely used in machinery and structural applications that demand uncompromising strength.

Grade 10

Grade 10 socket screws provide reliable tensile strength for medium- to heavy-duty assemblies. They are used in mechanical frames and equipment where consistent performance is required.

Grade 12

Grade 12 socket screws are engineered for extreme strength and hardness. They are chosen for engines, aerospace applications, and high-stress structural builds where fastener integrity is critical.

Grade 8

Grade 8 socket screws deliver toughness and durability. They are used in automotive, construction, and equipment installations that require long-term reliability under heavy loads.

Stainless Steel A2

Stainless A2 socket screws offer dependable corrosion resistance for indoor and outdoor use. They are suitable for general construction, light machinery, and applications exposed to moisture.

Stainless Steel 18-8

Stainless 18-8 socket screws are a versatile choice that combines strength with corrosion resistance. They are common in automotive, mechanical, and industrial use where long service life is important.

Stainless Steel A4

Stainless A4 socket screws provide superior corrosion protection in marine and chemical environments. They are trusted for shipbuilding, pipelines, and outdoor projects exposed to salt and harsh elements.

Available Finishes

South Coast Fasteners offers metric socket screws in finishes that extend service life, enhance performance, and meet environmental requirements.

Black Oxide

Black oxide provides a sleek appearance with light corrosion resistance and improved lubricity. It is often used in indoor machinery and equipment where aesthetics and ease of installation matter.

Mechanical Zinc Cr+3

Mechanical zinc Cr+3 provides strong corrosion resistance while preventing hydrogen embrittlement. It is commonly used in structural, automotive, and industrial assemblies that require long-lasting protection.

Plain Thermal Black Oxide

Plain thermal black oxide combines wear resistance with a raw steel appearance. It is often selected for mechanical applications where a dark finish is preferred.

Zinc Bake Cr+3

Zinc bake Cr+3 coatings provide reliable rust protection with enhanced durability. They are suitable for industrial and structural builds where long-term strength is necessary.

Zinc Bake Cr+6

Zinc bake Cr+6 offers advanced corrosion resistance with a chromate seal, making it ideal for outdoor and exposed environments.

Zinc Cr+3

Zinc Cr+3 provides a bright, clean finish that is environmentally compliant while offering dependable corrosion protection. It is widely accepted for construction, fabrication, and general industrial use.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we stock a complete line of metric socket screws that meet DIN, ISO, and JIS specifications for global compatibility. Our inventory includes multiple grades, materials, and finishes so you can match the right fastener to your job. With fast processing, responsive support, and the ability to provide documentation such as material certs and RoHS compliance, we deliver more than just parts, we deliver peace of mind.

Shop Metric Socket Screws Online Today

Shop the full line of metric socket screws with South Coast Fasteners today. Whether you are replenishing shop stock or sourcing hardware for a large-scale build, our online platform makes it simple to order anytime. For help with specifications, bulk orders, or certifications, contact our team directly. With South Coast Fasteners, you get the right socket screws, backed by reliable service and fast delivery.