YH FASTENER provides high-precision wrenches engineered for efficient fastening, reliable torque control, and superior durability. Available in multiple types, sizes, and custom designs, our wrenches deliver exceptional performance for industrial, automotive, and assembly applications.
Yuhuang Tech specializes in custom stainless steel wrenches including L-type, U-type, hex, and ring fastener designs. Engineered for high precision, superior torque, and long-lasting durability, our tools deliver factory-direct quality and tailored solutions to support diverse industrial applications.
One of our most sought-after products is the DIN911 Alloy Steel L Type Allen Hexagon Wrench Keys. These hex keys are designed to meet the highest standards of quality and performance. Made from durable alloy steel, they are built to withstand the toughest fastening tasks. The L style design provides a comfortable grip, allowing for easy and efficient use. The max black customize head adds a touch of sophistication to the wrench keys, making them both functional and stylish.
The L-wrench is a common and practical type of hardware tool, which is popular for its special shape and design. This simple wrench has a straight handle on one end and an L-shaped on the other, which helps users to tighten or loosen screws at different angles and positions. Our L-wrenches are made of high-quality materials, precision machined and rigorously tested to ensure their durability and stability
A hex wrench is a versatile tool that combines the design features of a hex and cross wrench. On one side is the hexagon socket of the cylindrical head, which is suitable for tightening or loosening various nuts or bolts, and on the other side is a Phillips wrench, which is convenient for you to handle other types of screws. This wrench is made of high-quality materials that are precision machined and rigorously tested to ensure its durability and reliability.
This is a tool specially designed for removing Torx strap screws. Torx screws, also known as anti-theft screws, are often used on equipment and structures that require additional security protection. Our Torx wrenches with holes can easily handle these special screws, ensuring that you can carry out disassembly and repair work efficiently. Its special design and high-quality materials allow it to serve its purpose while maintaining durability and reliability. Whether you’re a professional technician or a casual user, our Torx wrenches with holes will be an indispensable addition to your toolbox. ”
A hex wrench, also known as a “Allen wrench” or “Allen wrench”, is a tool commonly used to tighten or loosen hex screws. Its main feature is that it has hexagonal holes at the ends for use with hexagonal screw heads.
The hex wrenches produced by our company are made of high-quality alloy steel and are made of precision heat treatment and surface treatment to ensure their durability and longevity. The wrench is well-designed, has a comfortable handle, is easy to operate, and provides a secure grip.
Category: WrenchTag: allen key with hole
Category: WrenchTag: allen socket wrench set
The L-shaped handle makes the wrench easier to hold and operate, providing greater force transmission. Whether it’s tightening or loosening screws, L-shaped ball wrenches can easily cope with a variety of work scenarios.
The ball tip end can be rotated at multiple angles, giving you more flexibility to adjust the position of the wrench to accommodate different angles and hard-to-reach screws. This design can improve work efficiency and reduce cumbersome operation.
Category: WrenchTag: metric allen key set
Category: WrenchTag: torx key
Category: WrenchTag: security allen key set
Whether you’re tightening bolts, yanking off nuts, or messing with any other threaded fasteners, wrenches are total must-haves—with one in hand, you can get those tightening/loosening jobs done right and without breaking a sweat. Don’t sleep on how useful these things are, either; they do some key work: give you enough oomph to turn fasteners without slipping, keep the edges of bolts and nuts from getting chewed up, and fit into all sorts of tricky spots where you need to work.
Wrenches are made for real-world needs—some are good for squeezing into tight gaps, others let you really lean into it for torque, and some are just quick to use. These three are the ones you’ll reach for most:
Hex key：Super simple design - hexagonal cross-section, usually either L-shaped or T-shaped handle. What's the best part? It can be perfectly installed on hex socket screws - you know, when you repair your mobile phone or laptop, or work on factory machines, you will find these screws.
Torx key：The Torx key features a closed jaw design, which tightly engages the bolt to prevent slippage and ensures uniform force transmission. It is suitable for scenarios such as automotive maintenance and mechanical manufacturing. With anti-rust treatment and an ergonomic handle, it is durable and labor-saving, making it a great helper for professional fastening operations.
Universal hex wrench: It has universal joints and the Angle can be flexibly adjusted, so it is not afraid of narrow and tricky Spaces. The hexagonal head is compatible with common screws. When in use, it is both labor-saving and accurate. Whether repairing machinery or installing electronic products, it can tighten screws quickly and accurately, greatly improving work efficiency. It is a practical and good tool.
Picking the right wrench isn’t just about speed—it also keeps fasteners from breaking and keeps you safe. Here’s where you’ll use them most:
1. Automotive Maintenance and Repair
Go-to wrenches: Box-End Wrenches, Cross Wrenches
What you’ll use them for: Tightening engine bolts? A box-end wrench won’t chew up the edges and still gives you enough oomph. Changing a tire? Grab the cross wrench—loosens or tightens lug nuts fast and solid. Fixing chassis parts? Space is tight, but a 12-point box-end wrench locks back on with just a twist. Super convenient.
2. Industrial Machinery and Equipment
Go-to wrenches: Hex Wrenches, Box-End Wrenches
Factory uses: Assembling precision machine parts? The tiny hex socket screws in gearboxes only work with a hex wrench—nothing else fits right. Maintaining conveyor belts? Box-end wrenches keep you from slipping when you’re tightening roller nuts. Fixing production robots? An L-shaped hex wrench can squeeze into the narrow gaps in the arms—total lifesaver.
3. Furniture Assembly and Home Repairs
Go-to wrenches: Hex Wrenches, Box-End Wrenches
Home jobs: Putting together that flat-pack dresser? A hex wrench is the only thing that fits those tiny screws. Fixing appliances? Small hex wrenches work for oven door hinges or washing machine parts. Installing a faucet under the sink? Use a box-end wrench to tighten the nuts—no scratches, no slips.
At Yuhuang, customizing wrenches is so easy—no guessing, just tools that fit your needs perfectly. All you have to do is tell us a few key things:
1.Material: What do you need it for? Chrome-vanadium steel is great if you’re using it a lot or need torque. Carbon steel is cheap and cheerful for home/office use. Stainless steel doesn’t rust—perfect for outdoor or damp spots (like on a boat).
2.Type: What kind do you want? Hex wrenches can be cut to length—whether you need to reach deep holes or narrow gaps. Box-end wrenches come in 6 or 12-point, single or double-ended. Cross wrenches can have custom socket sizes, even for weird, non-standard lug nuts.
3.Dimensions: Specific sizes? For hex wrenches, tell us the cross-section (like 5mm or 8mm—needs to fit the screw!) and length (to reach deep spots). For box-end, socket size (13mm, 15mm) and handle length (longer = more torque). For cross wrenches, arm length and socket inside size (to match your lug nuts).
4.Surface Treatment: How do you want it to look/feel? Chrome plating is smooth and rust-proof—good for indoor use. Black oxide gives better grip and holds up to rough use. We can even add rubber grips to the handles, so your hands don’t get sore if you use it for a while.
5.Special Needs: Anything extra? Like a wrench that’s hex on one end and box on the other, your logo on the handle, or one that can handle high heat (for engine work)? Just say the word.
Share these details, and we’ll first check if it’s doable. If you need advice, we’ll help—then send you wrenches that fit like a glove.
Q: How do I pick the right wrench for different fasteners?
A: Hex socket screws (electronics, furniture)? Use a hex wrench. Hex bolts/nuts that need torque (car parts)? Go for a box-end. Lug nuts? Only use a cross wrench—don’t mix these up!
Q: What if a wrench slips and ruins a fastener?
A: Stop using it immediately! The wrench is definitely the wrong size—get one that matches exactly (like a 10mm box-end for a 10mm nut). If the fastener’s just a little messed up, use a 6-point box-end—it touches more of the surface, so it won’t make it worse. If it’s really damaged, replace the fastener first.
Q: Do I need to maintain wrenches regularly?
A: For sure! After using them, wipe off dirt, oil, or rust with a wire brush or degreaser. For chrome-plated ones, put a thin layer of oil on them to keep rust away. Don’t leave them in damp spots or near chemicals—they’ll last way longer that way.
Q: Can I use a cross wrench for other fasteners besides lug nuts?
A: Usually not. Cross wrenches are made just for big lug nuts—they don’t need crazy torque, but the socket size and arm length are wrong for smaller bolts (like engine parts). Using it on other stuff might over-tighten or break things.
Q: Is a T-handle hex wrench better than an L-shaped one?
A: Depends on what you’re doing! If you use it a lot or work in a spot that’s not too tight (like assembling a bookshelf), T-handle is easier on your hands and saves effort. If you’re squeezing into a tiny gap (like inside a laptop) or need to carry it around, L-shaped is more flexible. Pick based on what you’re working on.
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