T - Slot T - Head Bolts M5 M6 | A2 Stainless Steel Hammer Screws for Aluminum Extrusion - HomeDIYer

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T-Slot T-Head Bolts M5 M6 | A2 Stainless Steel Hammer Screws for Aluminum Extrusion

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Thread Dia x Length(Not include head): M5 x 12mm

Pack of Quantity(Pcs): 2

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$6.77 USD

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M5 & M6 T-Slot Bolts — Secure, Versatile Fasteners for Aluminum Extrusion Builds

If you've ever struggled to keep fixtures, brackets, or guards firmly in place on an aluminum extrusion frame, you know how frustrating a loose connection can be. Whether you're a maker building a CNC router, a fabricator assembling machine guarding, or a DIYer setting up a workbench, these M5 M6 T-slot bolts give you a fast, tool-free way to lock components exactly where you need them — and keep them there.

Each bolt is machined from A2 stainless steel (ISO 3506, property class 70) and features a T-shaped hammer head designed to slide into standard T-slot channels and lock with a 90° turn. Available in M5 and M6 thread diameters with shank lengths ranging from 12 mm (≈ 1/2") to 55 mm (≈ 2-3/16"), sold in flexible pack quantities of 1 to 30 pieces so you can order exactly what your project requires.

These T-slot hammer screws are widely used in aluminum extrusion workholding fixtures, 3D printer frame assemblies, CNC machine guarding panels, modular workbench systems, and industrial automation framing — anywhere a reliable, repositionable metric T-slot fastener is needed.

ℹ️ Compatibility Note: M5 bolts are typically suited for 20-series aluminum extrusion profiles (slot width ≈ 6 mm); M6 bolts are generally suited for 30-series profiles (slot width ≈ 8 mm). Please verify your profile's slot dimensions before ordering.

✅ Key Features of These T-Slot T-Head Bolts

🔩T-Head (Hammer Head) Design — The rectangular T-shaped head slides into any standard T-slot channel and locks with a simple 90° rotation, enabling fast, tool-free positioning without disassembling your frame.
🛡️A2 Stainless Steel Construction — Manufactured to ISO 3506 property class 70, these bolts resist rust and oxidation in humid workshops, outdoor enclosures, and light industrial environments where carbon steel fasteners would corrode.
📐Wide Size Range for Metric Extrusion Systems — M5 × 12–40 mm and M6 × 12–55 mm cover the most common thread and length combinations used in aluminum extrusion workholding and machine framing applications.
🔄Repositionable Without Disassembly — Unlike welded or riveted connections, T-slot bolts can be loosened, slid to a new position, and re-tightened in seconds — ideal for adjustable fixtures and modular workbench setups.
📦Flexible Pack Quantities — Choose from 1 to 30 pieces per order so you can match exactly what your build requires, whether it's a single replacement bolt or a full workshop stock-up.
⚙️Standard ISO Metric Threads — M5 (0.8 mm pitch) and M6 (1.0 mm pitch) coarse threads mate with standard metric T-nuts, flange nuts, and hex nuts used across aluminum extrusion systems from most major manufacturers.

📐 Technical Specifications — T-Slot T-Head Bolts

Product Type	T-Slot T-Head Bolt (Hammer Screw)
Thread Diameter	M5 or M6 (select variant)
Thread Standard	ISO Metric Coarse — M5 × 0.8 mm pitch; M6 × 1.0 mm pitch
Shank Length (excl. head)	M5: 12 mm (≈ 1/2") – 40 mm (≈ 1-9/16"); M6: 12 mm (≈ 1/2") – 55 mm (≈ 2-3/16")
Head Type	T-Head (Hammer Head) — rectangular, for T-slot channel insertion
Material	A2 Stainless Steel (ISO 3506)
Property Class	70 (tensile strength ≈ 700 MPa)
Finish	Natural stainless (no coating)
Compatible Profile Slot Width	M5: typically 6 mm slot; M6: typically 8 mm slot — confirm with your extrusion spec
Pack Quantity Options	1, 2, 3, 5, 7, 10, 15, 20, 25, or 30 pieces (varies by size — see variant options)
Typical Applications	Aluminum extrusion frames, CNC workholding, machine guarding, 3D printer builds, modular workbenches
Country of Origin	Contact us to confirm

⚠️ Sizing Tip: The length listed for each variant is the shank length not including the head. Measure your clamping stack height and add the T-slot channel depth to determine the correct bolt length for your application.

❓ Frequently Asked Questions

How do I choose the right length for my T-slot bolt?

Measure the total material thickness you need to clamp, then add the depth of the T-slot channel (typically 5–8 mm). The bolt length listed is the shank length excluding the head. For example, if your plate is 10 mm thick and the slot depth is 6 mm, an M6 × 20 mm bolt (≈ 0.79 in) is generally a good starting point. When in doubt, size up by one increment.

What thread standard do these T-slot bolts use?

These bolts use standard ISO metric coarse threads — M5 (0.8 mm pitch) and M6 (1.0 mm pitch) — compatible with the vast majority of metric T-nuts, flange nuts, and hex nuts used in aluminum extrusion systems worldwide.

Are these bolts compatible with 20-series and 30-series aluminum extrusion profiles?

M5 bolts are typically used with 20-series (2020, 2040) profiles, while M6 bolts are generally suited for 30-series (3030, 3060) profiles. Always verify the slot width of your specific extrusion before ordering — slot dimensions can vary between manufacturers.

How strong are A2 stainless steel T-slot bolts?

A2 stainless steel (ISO 3506 property class 70) has a tensile strength of approximately 700 MPa and a proof load stress of 450 MPa. This is generally sufficient for workholding, machine guarding, and structural framing applications. For heavy dynamic loads or high-vibration environments, consider upgrading to A4-80 grade fasteners.

Can I use these T-slot bolts outdoors or in wet environments?

Yes. A2 stainless steel offers good corrosion resistance suitable for most outdoor and humid indoor environments. For marine or highly corrosive settings (salt spray, chemical exposure), A4 (316) stainless steel is generally recommended instead.

How many pieces do I need to order?

We offer packs of 1, 2, 3, 5, 7, 10, 15, 20, 25, and 30 pieces depending on the size selected. For a single machine build, a pack of 10–20 is typically sufficient. Larger packs offer better per-unit value for production or workshop use.

What tool do I need to install these T-slot bolts?

The T-head (hammer head) design allows the bolt to be inserted into the slot channel and rotated 90° by hand to lock in place — no special tools required for insertion. A standard hex wrench or socket wrench is then used to tighten the mating nut to your required torque.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

T-Slot T-Head Bolts M5 M6 | A2 Stainless Steel Hammer Screws for Aluminum Extrusion

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Description

M5 & M6 T-Slot Bolts — Secure, Versatile Fasteners for Aluminum Extrusion Builds

✅ Key Features of These T-Slot T-Head Bolts

📐 Technical Specifications — T-Slot T-Head Bolts

❓ Frequently Asked Questions

T-Slot T-Head Bolts M5 M6 | A2 Stainless Steel Hammer Screws for Aluminum Extrusion

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