Our fastener tools cover everything needed to install, tighten, and service metric hardware hex and Torx keys, driver bits, torque wrenches, circlip pliers, rivet guns, and thread insert tools. Matched to the fasteners we supply, these quality tools ensure correct drive engagement, accurate torque, and reliable assembly.

Fastener Tools - Metric Sizes

What Fastener Tools Do You Need?

The right tool is as important as the right fastener. A drive that does not fully engage the recess rounds out the head; a joint tightened by feel alone can be under- or over-torqued, risking loosening or failure. Correctly matched tools ensure the full drive is engaged, the specified clamp load is achieved, and the assembly can be serviced without damage. Investing in quality tooling protects both the fasteners and the components they hold.

At Metric Specialties we stock the complete range of fastener tools to support the hardware we supply. Hex (allen) keys and Torx keys in L-key, T-handle, folding, and ball-end forms drive socket and star-recess fasteners. Socket and screwdriver bits fit power and hand drivers for every head style. Torque wrenches deliver accurate, repeatable clamp loads to specification. Circlip pliers fit internal and external retaining rings, rivet guns set blind rivets, and thread insert installation and extraction tools handle helical and solid inserts. Together this range equips any workshop or field kit for reliable metric assembly.

Key Features and Benefits

• Correct Drive Engagement: Precision hex, Torx, and bit tools fully seat in the recess, preventing rounding and cam-out.
• Accurate Torque: Torque wrenches deliver repeatable clamp loads to specification for safe, reliable joints.
• Specialist Assembly: Circlip pliers, rivet guns, and insert tools handle rings, rivets, and thread inserts correctly.
• Versatile Formats: L-key, T-handle, folding, and ball-end drivers suit access, speed, and torque needs.
• Matched to Fasteners: Tooling is sized and specified to the metric fasteners we supply for a perfect fit.

Tool Types and Materials

• Chrome Vanadium Keys and Sockets: Tough, durable steel for hex, Torx, and socket drivers under high torque.
• Torque Wrenches: Calibrated click and dial wrenches for accurate, repeatable tightening.
• Hardened Pliers and Cutters: Circlip pliers and cutters for retaining rings and rod.
• Riveting and Insert Tools: Rivet guns and insert mandrels for permanent joining and thread repair.

Standards Compliance

• ISO 2936 Hexagon socket (allen) key wrenches.
• ISO 10664 Torx (hexalobular) drive geometry.
• ISO 6789 Torque tools requirements and calibration.

Common Applications and Industries

Fastener tools support every trade and industry that installs metric hardware, from precision electronics assembly to heavy structural steelwork. Assembly lines use torque wrenches and powered drivers with Torx and hex bits for accurate, repeatable clamp loads, while maintenance and field engineers carry hex and Torx key sets, circlip pliers, and rivet guns to service machinery, vehicles, and equipment on site.

Specialty tools address specific hardware: circlip pliers for retaining rings, rivet guns for blind rivets, and insert installation and extraction tools for thread repair. Whether equipping a production line, a workshop, or a portable field kit, matching quality tooling to the fasteners in use protects both the hardware and the components it secures.

How to Choose the Right Tool

Start with the fasteners you install: match hex and Torx keys and bits to the drive recesses and sizes in use, and add a torque wrench where accurate, repeatable clamp load matters on critical joints. Choose the driver format for the work L-keys and folding sets for compact kits and high torque, T-handles and powered bits for repetitive assembly, and ball-end keys for angled access.

Add the specialty tools your hardware requires: internal and external circlip pliers for retaining rings, a rivet gun sized to your blind rivets, and insert tools for helical or solid thread inserts. Favour durable chrome vanadium and calibrated torque tools, and consider complete sets where a range of sizes will be needed across a workshop or service kit.

Range and Availability

Available across hex and Torx keys, socket and screwdriver bits, torque wrenches, circlip pliers, rivet guns, and thread insert tools, individually and as sets.

Why Buy From Metric Specialties

As dedicated metric fastener specialists, we hold fastener tools in the sizes, grades, and finishes that engineers actually need, backed by clear DIN and ISO standard references so you can specify with confidence. Every item is sourced to recognised standards and quality-controlled, giving you consistent thread fit, strength, and corrosion performance across repeat orders.

Whether you need a single item for a repair or bulk quantities for production, our range, technical guidance, and fast dispatch help you find the exact fastener for the job. If you are unsure which size, grade, or finish suits your application, our team can help you match the right product to your load, environment, and standard, so your assemblies are reliable and built to last.

Frequently Asked Questions (FAQs)

1. What tools do I need to install socket head bolts?

Socket head bolts are driven with hex (allen) keys or hex socket bits sized to the recess. For accurate clamp load, a torque wrench with the matching hex bit is recommended on critical joints.

2. What is a ball-end hex key for?

A ball-end hex key lets you engage a socket fastener at an angle, up to around 25 degrees, for access in tight spaces. The straight end is used for final tightening as it transmits more torque.

3. Why should I use a torque wrench?

A torque wrench applies a precise, repeatable clamp load to specification, preventing under-tightening (which risks loosening) and over-tightening (which can strip threads or stretch the bolt).

4. What tool fits circlips?

Circlips are fitted with circlip pliers, internal pliers for bore rings and external pliers for shaft rings. Straight and bent-nose versions suit different access angles around the groove.

5. How do I set a blind rivet?

A blind rivet is inserted into the hole and set with a rivet gun, which pulls the mandrel to expand the rivet body and clamp the materials, then snaps off the mandrel. It fits from one side of the workpiece.

6. What tool installs a helical thread insert?

Helical wire inserts are wound in with a dedicated insert installation tool that engages the insert's tang, driving it into the pre-tapped hole. An extraction tool removes inserts if needed.

7. What is the difference between an L-key and a T-handle hex key?

An L-key is a simple bent hex bar giving both reach and leverage, while a T-handle provides a comfortable grip and faster driving. T-handles suit repetitive work; L-keys suit compact kits and high torque.

8. Do you supply tool sets as well as individual tools?

Yes. We supply hex and Torx key sets, socket and bit sets, and specialty tool kits, as well as individual tools, so you can equip a full workshop or replace a single item.

9. How do I keep drive bits from wearing out?

Use the correct size and type of bit fully seated in the recess, avoid cam-out by keeping the tool aligned, and replace worn bits promptly. Quality chrome vanadium tooling lasts far longer under load.

10. What tools do you stock?

We stock hex and Torx keys, socket and screwdriver bits, torque wrenches, circlip pliers, rivet guns, and thread insert installation and extraction tools, individually and as sets.