Alloy Steel Metric Button Head Socket Cap Screws

Alloy steel metric button head socket cap screws feature a smooth, low-profile rounded head with an internal hex drive for secure fastening in compact metric mechanical assemblies. The broad bearing surface of the button head provides a finished appearance while maintaining a lower head profile than a standard metric socket head cap screw. The internal hex socket allows installation where external wrench clearance is limited, making these fasteners well suited for machinery, automation equipment, robotics, tooling, fixtures, conveyors, maintenance repairs, and OEM manufacturing.

Manufactured from alloy steel, these metric button head socket cap screws are intended for demanding industrial mechanical applications requiring dependable fastening performance. Their metric thread sizes make them suitable for internationally designed equipment utilizing metric fasteners, while the internal hex drive allows efficient installation with standard metric hex keys or hex bits.

Proper fastener selection should consider metric thread size, screw length, nominal body diameter, head diameter, head height, metric hex socket size, mating-thread engagement, installation clearance, and service conditions. Individual product pages provide verified engineering dimensions to assist engineers and purchasing professionals in selecting the appropriate fastener.

Cold Headers supplies alloy steel metric button head socket cap screws in a broad range of metric thread sizes and lengths, including standard, uncommon, and difficult-to-source configurations. Our catalog is organized to simplify exact-size sourcing while providing consistent engineering information across every product family.

Why Choose Alloy Steel Metric Button Head Socket Cap Screws?

Low-profile button head: Provides a smooth rounded profile with a broad bearing surface.
Metric thread sizes: Designed for machinery and equipment utilizing metric fasteners.
Internal hex drive: Allows installation using standard metric hex keys or hex bits.
Alloy steel construction: Intended for demanding industrial mechanical applications.
Verified engineering dimensions: Product pages provide metric thread size, screw length, body diameter, head diameter, head height, and metric hex socket size where available.

Selecting the Correct Metric Button Head Socket Cap Screw

Begin by confirming the required metric thread size and screw length. Review the body diameter, head diameter, head height, metric hex socket size, installation clearance, mating-thread engagement, and operating environment before selecting a fastener. Final selection should reflect the mechanical requirements of the completed assembly.

Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog helps engineers, distributors, maintenance professionals, and purchasing teams locate exact metric sizes, uncommon lengths, and difficult-to-find button head socket cap screws without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

Unit of Measure

Items	BHCS-AS-M M3-0.5 x 5 M3-0.5 x 5 Alloy Steel Metric Button Head Socket Cap Screw List Price (per 100 pieces) Call or Email for Pricing	BHCS-AS-M M3-0.5 x 6 M3-0.5 x 6 Alloy Steel Metric Button Head Socket Cap Screw List Price (per 100 pieces) $7.65	BHCS-AS-M M3-0.5 x 8 M3-0.5 x 8 Alloy Steel Metric Button Head Socket Cap Screw List Price (per 100 pieces) $7.70	BHCS-AS-M M3-0.5 x 10 M3-0.5 x 10 Alloy Steel Metric Button Head Socket Cap Screw List Price (per 100 pieces) $7.75	BHCS-AS-M M3-0.5 x 12 M3-0.5 x 12 Alloy Steel Metric Button Head Socket Cap Screw List Price (per 100 pieces) $7.80
Description	N/A M3-0.5 x 5 Alloy Steel Metric Button Head Socket Cap Screw helps engineers fasten metric covers, guards, panels, and enclosures with reduced snagging on exposed hardware. Alloy steel construction is commonly selected for metric fastening locations in OEM machinery and industrial maintenance. This part is useful where purchasing teams need exact metric size matching without converting to inch dimensions. The M3-0.5 x 5 size supports exact catalog selection for machine guards, equipment covers, panels, brackets, and manufacturing workcells. For engineers, OEM manufacturers, purchasing managers, and maintenance professionals, this alloy steel part helps match the fastener to the assembly without changing the locked dimensions. Industrial distributors, purchasing teams, maintenance professionals, and machine builders are common sourcing contexts for this product family. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A M3-0.5 x 6 Alloy Steel Metric Button Head Socket Cap Screw is used when a metric button head socket cap screw must combine alloy steel material with a finished profile. Applications include machine building, fixture work, robotics, packaging equipment, and replacement hardware programs. Metric sizing helps engineers maintain hardware consistency in globally sourced equipment and metric machine designs. The M3-0.5 x 6 size supports exact catalog selection for robotics, packaging machinery, inspection fixtures, and serviceable machine components. For engineers, OEM manufacturers, purchasing managers, and maintenance professionals, this alloy steel part helps match the fastener to the assembly without changing the locked dimensions. Automation systems, tooling plates, machine frames, and engineered fastening locations are common sourcing contexts for this product family. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A M3-0.5 x 8 Alloy Steel Metric Button Head Socket Cap Screw is selected for metric assemblies that need a rounded button head, smooth appearance, and internal hex drive. Internal hex drive access supports controlled installation in compact assemblies, service panels, tooling, and automation equipment. Alloy steel construction is commonly selected for metric fastening locations in OEM machinery and industrial maintenance. The M3-0.5 x 8 size supports exact catalog selection for tool and die work, fixture construction, material-handling equipment, and assembly machinery. For engineers, OEM manufacturers, purchasing managers, and maintenance professionals, this alloy steel part helps match the fastener to the assembly without changing the locked dimensions. Oem production, distributor stock programs, plant maintenance, and repair departments are common sourcing contexts for this product family. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A M3-0.5 x 10 Alloy Steel Metric Button Head Socket Cap Screw supports metric OEM equipment where a broad bearing surface and button head form are preferred. This part is useful where purchasing teams need exact metric size matching without converting to inch dimensions. Applications include machine building, fixture work, robotics, packaging equipment, and replacement hardware programs. The M3-0.5 x 10 size supports exact catalog selection for industrial machinery, maintenance repairs, production equipment, and equipment rebuilds. For engineers, OEM manufacturers, purchasing managers, and maintenance professionals, this alloy steel part helps match the fastener to the assembly without changing the locked dimensions. Machine guards, equipment covers, panels, brackets, and manufacturing workcells are common sourcing contexts for this product family. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A M3-0.5 x 12 Alloy Steel Metric Button Head Socket Cap Screw gives machine builders a metric alloy steel fastener for visible or frequently serviced assemblies. Metric sizing helps engineers maintain hardware consistency in globally sourced equipment and metric machine designs. Internal hex drive access supports controlled installation in compact assemblies, service panels, tooling, and automation equipment. The M3-0.5 x 12 size supports exact catalog selection for machine building, tooling, fixtures, automation equipment, and OEM machinery. For engineers, OEM manufacturers, purchasing managers, and maintenance professionals, this alloy steel part helps match the fastener to the assembly without changing the locked dimensions. Robotics, packaging machinery, inspection fixtures, and serviceable machine components are common sourcing contexts for this product family. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
Brands	N/A Cold Headers, Inc.
Diameter	N/A M3-0.5
Length	N/A 5 mm	N/A 6 mm	N/A 8 mm	N/A 10 mm	N/A 12 mm
Material	N/A Alloy Steel
Quantity	N/A 100
Key Size	N/A 2 mm
Note	N/A Less Than Package Quantity Specified Plus 25%.
Package Type	N/A Box
Industry Standard	N/A International Organization for Standardization (ISO 7380)