Metric 10.9 Hex Cap Screws
Metric 10.9 hex cap screws are medium-to-high strength fasteners built for industrial and OEM assembly work. Manufacturers rely on them when a joint needs to hold under real load, not just look tight on the shop floor. At Empire Bolt & Screw, we stock and supply metric 10.9 hex cap screws for manufacturers, machine shops, and OEMs across a range of industries. Whether you need a one-off bulk order or a sustaining VMI solution, the team at Empire can supply Class 10.9 metric screws for your application at great prices.
What Are Metric 10.9 Hex Cap Screws?
A hex cap screw is a threaded fastener designed to be driven with a wrench or socket. The hex head shape is easy to use, strong, and used across virtually every industrial sector. Metric 10.9 hex cap screws are machine-threaded fasteners, which means they thread into a matching internal thread rather than cutting or forming their own. They're commonly paired with hex nuts or driven directly into tapped holes, and they work with plain washers, lock washers, or flat washers depending on the application.Difference Between Hex Cap Screws and Hex Bolts
People often use "hex cap screw" and "hex bolt" interchangeably, but there's a real difference between the two. Hex cap screws are cold-headed and include a washer face on the bearing surface, which improves the seal at the joint. Hex bolts, on the other hand, are usually hot forged and don't have that same washer face. The distinction matters for engineers specifying parts to a print, even if the two terms get used loosely on the shop floor.Advantages of 10.9 Hex Cap Screws
So why does Class 10.9 show up so often in industrial specs? It comes down to a strength and cost balance. Class 10.9 hex cap screws deliver strength similar to a Grade 8 fastener in the inch-based system, which makes them a dependable choice anywhere a standard-strength metric bolt isn't enough but a specialty alloy fastener isn't necessary either. Key features and benefits of metric 10.9 hex cap screws include:- Medium-to-high tensile strength: With a minimum tensile strength around 1040 MPa and a proof load of roughly 830 MPa, metric 10.9 hex cap screws hold up under vibration and high stress
- Consistent head markings: Every metric 10.9 hex cap screw carries a "10.9" head stamp, so quality control and field techs can verify grade at a glance
- Heat-treated construction: These fasteners are quenched and tempered after forming, which locks in strength without sacrificing the ductility needed to resist cracking
- Wide finish availability: Plain, clear zinc, and yellow zinc finishes are all available
- Broad size range: Metric 10.9 hex cap screws are manufactured in a wide span of diameters and lengths, so they fit into nearly any bolt pattern an OEM or machine shop is working from.
Common Applications for Metric 10.9 Hex Cap Screws
- Industrial equipment
- Automotive and heavy truck components
- Agricultural equipment
- Construction machinery
- Machine tool and fixture assembly
- Material handling and conveyor systems
- General manufacturing applications
Available Materials & Finishes for Metric 10.9 Screws
Empire Bolt & Screw stocks metric 10.9 hex cap screws in medium carbon alloy steel, heat-treated through a quench-and-temper process to reach Class 10.9 strength ratings. Standard finish options include:- Plain finish for indoor applications with minimal corrosion exposure
- Clear electro-zinc plate for a bright finish with light corrosion resistance
- Yellow electro-zinc plate for added corrosion protection and easy visual identification on the assembly line
Metric 10.9 Hex Cap Screw Dimensions & Specifications
Metric 10.9 hex cap screws follow standard metric thread pitches and head dimensions, so they're interchangeable across most OEM drawings and international specs. Key specification points include:- Grade marking: 10.9 stamped on the head
- Minimum tensile strength: approximately 1040 MPa
- Proof load: approximately 830 MPa
- Thread type: coarse metric pitch, machine-threaded
- Head style: six-sided hex, with washer face on the bearing surface
Why Buy Metric 10.9 Hex Cap Screws from Empire Bolt?
At Empire, we are dedicated to supplying our customers with superior metric fasteners at great prices. When you work with us, you can count on:- Engineering support: Our in-house Mechanical Engineer works through application issues directly with your team, whether that means troubleshooting a failed joint or specifying the right metric 10.9 hex cap screw for a new design.
- Quality verification: Our certified Quality Control Technicians run full dimensional inspections in our on-site Quality Assurance Laboratory, so you're not guessing about tolerance or conformance.
- Inventory management: Our team has hands-on experience setting up Vendor Managed Inventory, Kanban, and Just-In-Time programs that cut down on stockouts and excess inventory alike.
- Custom fasteners: If you need non-standard fastening solutions, we’ve got you covered with our custom fastener manufacturing capabilities.
