Best Thumb Screw Depot in 2026

✔ 1/4"-20 x 1-1/2" ThumbScrew w/Black Tee Knob

✔ 4 Pack ✔ Proudly Built In USA

✔ Corrosion Resistant Stainless Steel ✔ Reusable

✔ 1/4"-20 x 1/2" ThumbScrew w/Black Tee Knob

✔ 4 Pack ✔ Proudly Built In USA

✔ Corrosion Resistant Stainless Steel ✔ Reusable

Strong steel Hex keys with black oxide coating.

T-handle design allows for greater leverage, increasing your torque strength with continual safety.

Convenient storage rack for hex keys and handle keeps this set together in your toolbox.

INCLUDES: (4) 5-Star Knobs, (4) T-Knobs and (8) 5/16”-18 T-Bolts (1", 1-1/2", 2-1/2" & 3-1/2 in length)

FUNCTION: Helps secure, clamp down and optimize numerous t-track, fences, routing jig and fixture assemblies – accepts any application that utilizes a 5/16”-18 internal thread (also accepts most ¾ inch wide by 3/8 inch deep T-tracks); Will not work with ¼” t-track

FEATURES: Premium black knobs constructed out of a robust and heat resistant Polypropylene plastic, paired with an ergonomic design for smooth handling and comfort, plus molded plated steel inserts that are corrosion and rust resistant and designed for anti-stripping

ADDED TORQUE: T handle wrench designed for added torque and durability

HEAVY-DUTY CONSTRUCTION: Made of super strong chromium-vanadium steel, this long-reach T handle stands up to even the toughest bolts and fasteners

ACCESS HARD TO REACH BOLTS: Measuring 7" wide x 11" long, positioning sockets into narrow spaces is easier than ever

INCLUDES: 10 Piece T-Track Knob Set with Thru Hole Knobs, ¼”-20 Hex Head Bolts and Washers

FUNCTION: With t track knobs and bolts like these, you can build your own jigs and fixtures and secure or attach them throughout your shop. Works with both ¼” mini t-track and universal t-track.

APPLICATIONS: Replacement knobs for your t-track assemblies, jig and fixture hardware and other general purpose woodworking applications that accept standard ¼ inch hex head bolt, including t-track assemblies, router bit guards, flip stops, stop blocks, miter gauge fences, feather boards, router tables, drill press, and other workshop accessories

SUPER VERSATILE 4-in-1 TIE DOWN ANCHOR - Not only do these M8 screws (no screw nuts included) for your Ford Bronco make sturdy handle grips, but they work as hooks or anchors for straps and add-ons, too. With these truck accessories, you can take your hard top off in no time.

2x WIDER, 20% LONGER - Making these truck and trailer tie downs wider and longer than most hardtop plastic screws gives them more reach. A strong alternative to a D ring, each comfy-to-hold M8 bolt screw has a 350 torque.

WITH A RUGGED LOOK - Quick to install with no modifications needed, this screws set integrates seamlessly with your vehicle’s build and style. For added durability, we built each thumb screw with a rubber-backed washer and thick square nut.

Fits most lawn mowers, snow throwers and other outdoor equipment

Contains two short bolts, two large bolts and two handles

Use: for visible and invisible screwing of exterior wood e.g. floor and lid formwork. High corrosion resistance thanks to stainless steel A2.

Raised countersunk head for aesthetic look and clean countersinking thanks to milling ribs. Optimal power transmission and clean fit with Spax bit T-Star plus T20 with guide pins.

Effortless work; and longer battery life: no pre-drilling (depending on the wood). Precise positioning and reduction of the splicing effect due to the drilling function of the CUT tip. Easier cutting of the wood fibre thanks to Spax-typical wave profile.

Car Dealer License Plate Thumb Screws

Requires No Tools to Install

High Quality Craftsmanship

➤Material: Aluminum Alloy

➤Dimension: #6-32, this is the standard one used on computer cases, PSU mountings, HD mountings, etc.

➤Usage: Philips cross slot, textured head designed for easy grip, provide quick installation for securing cases. Tighten by hand, then secure snugly with a screwdriver.

Twenty (20) 1/4-20 Thread x 1/2 (half) inch length thread thumbscrews.

1 Inch Plastic Knurled Head

1/2 Inch Long 1/4-20 Threaded Alloy Screw

Standard Thread Size: M8 (1.25mm Pitch); Bolt Length: 40mm / 1.57"; Lever Length: 58mm / 2.28"; Hex Socket Size: 4mm / 0.16"; Main Color: Matte Black

Clamping handle knobs with plated steel parts ensure durability, and offer increased stability and rigidity. Threaded male stud with black oxide finish for rust protection.

Reinforced bolts with locking levers, high precision, not easy to slip. Zinc alloy handle, strong structure, long service life. Provide comfortable hand grip and easy to install.

Standard Thread Size: M6 (1mm Pitch); Thread Length: 20mm / 0.79"; Knurled Head Diameter: 21mm / 0.83"; Total Height: 33mm / 1.3"

Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.

Tightly -in plated carbon steel metal insert ensures optimal durability and functionality, easy to install. Great for saw, drill press, lathe and routing jigs, packaging machinery, printing equipment, woodworking machinery and equipment.

JT's Strong Arm T-bolts tighten the jack stabilizers when in travel position and lock them down when in camping position, but must always be loosened when raising/lowering jacks

Replacement T-bolts for tightening any JT's Strong Arm Jack Stabilizer kit systems

2 per package

✅ Customize your own jigs

✅ 5 Pack

8 Set, 8pcs thumb screws M6*30 + 8pcs washers M6*12 +8pcs Nuts M6; Plum head diameter is 32mm, thread is M6*30 (D*L); Washer size is M6*12*0.15; Nut size is M6.

Plum head is made of high quality plastic, good toughness and impact resistance, anti-corrosion and anti-aging, can be used for many years.

Screw, washer, nut are all made of high grade iron, zinc plated surface, high hardness, greatly enhancing the ability of anti-corrosion and anti-rust.

Standard Thread Size: M6 (1mm Pitch); Thread Length: 10mm / 0.39"; Knurled Head Diameter: 21mm / 0.83"; Total Height: 23mm / 0.9"

Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.

Tightly -in plated carbon steel metal insert ensures optimal durability and functionality, easy to install. Great for saw, drill press, lathe and routing jigs, packaging machinery, printing equipment, woodworking machinery and equipment.

Standard Thread Size: M5 (0.8mm Pitch); Thread Length: 10mm / 0.39"; Knurled Head Diameter: 15mm / 0.59"; Total Height: 20mm / 0.79"

Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.

Tightly -in plated carbon steel metal insert ensures optimal durability and functionality, easy to install. Great for saw, drill press, lathe and routing jigs, packaging machinery, printing equipment, woodworking machinery and equipment.

Standard Thread Size: M5 (0.8mm Pitch); Thread Length: 30mm / 1.18"; Knurled Head Diameter: 21mm / 0.83"; Total Height: 44mm / 1.73"

Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.

Tightly -in plated carbon steel metal insert ensures optimal durability and functionality, easy to install. Great for saw, drill press, lathe and routing jigs, packaging machinery, printing equipment, woodworking machinery and equipment.

Material:Carbon Steel

Finish: Nickel Plated

Size:45 Series M8x30mm(More dimension please see the picture)

Thread Size: M6 x 25mm/ M6 x 1" (D*L); Total Length: 37.5mm / 1.47"

Weight: 92g; Product Name: Thumb Screw

Material: Metal; Package Content: 4pcs x Knurled Thumb Screw

Material: Carbon Steel + ABS.

Total height: 21 mm/0.82 inch; Head Diameter: 14mm/0.55in;

Male Thread Diameter: M4; Male Thread Length: 10mm / 0.39".

✔ 1/4"-20 x 1-1/2" ThumbScrew w/Black Tee Knob

✔ 4 Pack ✔ Proudly Built In USA

✔ Corrosion Resistant Stainless Steel ✔ Reusable

✔ 1/4"-20 x 1/2" ThumbScrew w/Black Tee Knob

✔ 4 Pack ✔ Proudly Built In USA

✔ Corrosion Resistant Stainless Steel ✔ Reusable

Contemporary Satin Textured Finish ,scratch and dirt resistant ,won't crack, become brittle or discolor.

Made of black thermoplastic, bushing and threaded bolt in stainless steel.

Can be used either as operating handles or for clamping purposes, providing high clamping force.

British Standard Size. 1/4 Inches thread diameter, 1.8 inches length in thread. 2 inches length of the rod, 2.5 inches overall length

Made of high grade Nylon. These Nylon Thumb Screws offer insulation(non-conductivity), corrosion resistance and chemical stability.

Precison. Fine plastics injection ensures an accurate size and perfect shape in these thumb screw bolt.

Include: 5pcs T-bolts, 5pcs knobs, 5pcs washers

Works with 3/4 x 3/8 inch T-slot track,helping to secure various jigs and fixtures while optimizing your t-track system

Knobs are constructed from polypropylene plastic with molded-in brass insert that will not strip; T-bolts constructed from steel; Robust and durable

PRODUCT DIMENSION---6 PCS x T type Clamping Handle Knob. Head Diameter: 36mm/1.42" ; Thread Length: 30mm/1.18" ; Thread Diameter: 6mm/0.24" ; Total Height: 48mm/1.89"

HIGH-QUALITY MATERIAL---These knob replacement parts are made of ABS plastic carbon steel galvanization surface, anti-corrosion and anti-rust. scratch and dirt resistant. Wear-resistant and corrosion-resistant, anti-aging, can be used for many years.

EASY TO USE---Easy to install and remove without any other tools. T shaped knurled head shaped knurled head fastening, locking, adjusting effect. Can be used repeatedly Male threaded knobs has smooth surface, complete and precise workmanship. Screw on type design for easy install and with surface nice finish for comfortable grip.

Includes: (10) Ten Star Knobs, (10) 1/4" T-Bolts, (10) Washers

Specifications: Knobs possess a 1-1/4” diameter and 13/16” height (3.2 cm x 2cm), threaded knob is 1/4-inch (6.35mm), T-Bolts are 1/4”-20 x 1-1/2-inch and washers are Ø5/8” x Ø5/16'' x 1.5t

Applications: Ideal for t-tracks, router bit guards, stop blocks, miter gauge fences, feather boards, router tables, drill presses, and other workshop accessories