Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High
Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High
Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High
Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High
Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High
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Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob HighKnurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob HighKnurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob HighKnurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob HighKnurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High

Knurled Thumb Screws Aluminium M8 x 70-100mm Shoulder Bolts Hand Grip Knob High

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Beschreibung

M8 Knurled Thumb Screws Aluminium — Tool-Free Fastening for Makers & Builders

When standard hex bolts slow down your workflow, M8 knurled thumb screws aluminium give PC builders, enclosure assemblers, and iterative makers the hand-tightened access they need — no driver required. Whether you're securing a side panel for the tenth time this week or dialing in a prototype chassis, these shoulder bolts let you open, adjust, and close without reaching for a tool.

Each screw is machined from aluminium alloy with a deeply knurled cylindrical head for a firm finger grip. The threaded shank measures M8 in diameter, with shaft lengths ranging from 70 mm to 100 mm (approximately 2.76 in to 3.94 in) in 5 mm increments. Available in 10 anodized color options — Royal Blue, Green, Golden, Dark Red, Black, Silver, Purple, Rose Red, Sky Blue, and Orange — and sold in 1-, 2-, or 5-piece packs.

Typical applications include PC case panel fasteners for tool-free side access, aluminium extrusion frame assemblies where frequent disassembly is needed, and electronics enclosure covers on test benches or lab rigs where repeated hand-tightening is part of the workflow. The shoulder bolt profile also makes these knurled thumb screws a reliable choice for jig fixtures and custom mounting brackets.

⚙️ Compatibility: M8 thread pitch. Verify your panel or bracket thread spec before ordering. Shoulder length varies by variant — select your required shaft length above.

✅ Key Features of These M8 Knurled Thumb Screws Aluminium

  • Tool-Free Hand Tightening — Deeply knurled cylindrical head provides a secure finger grip for repeated tightening and loosening without a screwdriver or hex key.
  • Aluminium Alloy Construction — Lightweight yet rigid material keeps panel weight low while resisting corrosion in typical indoor environments.
  • M8 Thread, 7 Length Options — Shaft lengths from 70 mm to 100 mm (2.76–3.94 in) in 5 mm steps let you match the exact panel stack-up thickness.
  • 10 Anodized Color Choices — Royal Blue, Green, Golden, Dark Red, Black, Silver, Purple, Rose Red, Sky Blue, and Orange for color-coded panel identification or aesthetic builds.
  • Shoulder Bolt Profile — The unthreaded shoulder section provides a clean bearing surface, useful for guided or floating panel mounts.
  • Flexible Pack Sizes — Available in 1-, 2-, and 5-piece quantities to suit single replacements, paired installs, or small-batch builds.

📐 Technical Specifications — M8 Knurled Thumb Screws

Thread Size M8
Shaft Length (Excluding Head) 70 / 75 / 80 / 85 / 90 / 95 / 100 mm (2.76–3.94 in) — See variant options
Head Style Knurled cylindrical thumb head
Drive Style Hand-tightened (tool-free)
Material Aluminium alloy
Finish Anodized — See variant options for color
Available Colors Royal Blue, Green, Golden, Dark Red, Black, Silver, Purple, Rose Red, Sky Blue, Orange
Pack Quantity 1 Pcs / 2 Pcs / 5 Pcs — See variant options
Thread Pitch See variant options
Head Diameter See variant options
Overall Length (Including Head) See variant options

❓ Frequently Asked Questions

How do I choose the right shaft length for my panel?

Measure the total thickness of all panels, brackets, or spacers the screw must pass through, then add the depth of the receiving thread. Choose the shaft length (70–100 mm) that matches or slightly exceeds that combined measurement. If you are between sizes, size up to ensure full thread engagement.

Are these thumb screws strong enough for structural use?

These aluminium knurled thumb screws are designed for panel-retention and light-duty fastening applications — PC cases, enclosure covers, jig fixtures, and extrusion frames. They are not rated for high-load structural joints. For load-bearing connections, consult a fastener engineer and verify the required tensile and shear ratings.

Will the anodized finish resist corrosion or scratching?

Anodizing creates an oxide layer that improves corrosion resistance compared to bare aluminium and provides the color finish. The coating is harder than the base metal but can scratch under abrasive contact. For best longevity, avoid dragging the head across rough surfaces and keep the screws away from prolonged moisture exposure.

Are these compatible with standard M8 threaded inserts and nuts?

Yes — the M8 thread is a standard metric designation and will engage with any M8-compatible threaded insert, nut, or tapped hole of the same pitch. Always confirm the thread pitch of your receiving component matches before installation, as M8 is available in both coarse (1.25 mm) and fine (1.0 mm) pitch variants.

Can I use color coding to identify different panel zones?

Yes — with 10 anodized color options available, many builders assign a specific color to each panel zone (e.g., Blue for the top panel, Black for the rear, Red for the GPU bracket). This makes disassembly faster and reduces the chance of mixing up panels during maintenance or transport.

What is the difference between a thumb screw and a shoulder bolt?

A standard thumb screw is threaded along its full shank length. A shoulder bolt (also called a shoulder screw) has an unthreaded cylindrical section — the "shoulder" — between the head and the threaded portion. This shoulder acts as a precision bearing surface or a guide pin, allowing the fastened panel to float or pivot slightly. These screws feature a shoulder bolt profile, making them suitable for guided panel mounts.

How many screws do I need for a typical PC case side panel?

Most ATX and mid-tower side panels use 2–4 thumb screws per panel. A 2-piece pack covers a single panel with two fasteners; a 5-piece pack is useful for builds with multiple panels or when you want spares on hand. Check your case manual for the exact fastener count and thread spec before ordering.

🛒 Select your Screw Size, Colour, and Pack Quantity above, then add to cart.

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