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Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100

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Unbranded · SKU: AE7707596

Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100

This plastic black hand knob is designed for light-duty industrial applications requiring a secure grip. It features a 3.21-inch diameter for comfortable hand operation and a 1/4-20 UNC threaded insert for reliable mounting. The unit measures 3.21 by 0.83 inches with a black finish, providing a durable and professional appearance. It is packaged for efficiency with 100 units per case.

2-3 weeks
$99.99($1.00/each)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 9-$99.99 / each
10 - 49-5%$94.99 / each
50+-10%$89.99 / each
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Technical Specifications

MaterialPlastic
FinishBlack
Size3.21x0.83 in
Load CapacityLight duty
Thread Size1/4-20 UNC
Knob Diameter3.21 in

Product Description

Overview

This plastic hand knob is engineered for light-duty industrial and commercial applications where a secure, ergonomic grip is required for frequent manual adjustment. Its durable construction and standardized thread ensure reliable performance in equipment panels, cabinetry, machinery guards, and access doors. The matte black finish provides a clean, professional appearance that resists showing wear.

Key Features

Constructed from durable, impact-resistant plastic for long service life Features a 1/4-20 UNC threaded brass insert for secure metal-to-metal fastening Large 3.21-inch diameter knob offers excellent leverage and comfortable hand operation Ergonomic rim design with pronounced finger grips ensures positive control, even with gloves

Matte black finish maintains a consistent professional look and hides minor scuffs Pre-assembled design allows for immediate installation without additional components

Specifications

Material: High-Strength Plastic Finish: Matte Black Overall Dimensions: 3.21 inches in diameter by 0.83 inches in height Thread Specification: 1/4-20 UNC (Brass Insert) Load Capacity: Light Duty Mounting Hole Requirement: Fits standard 1/4-20 UNC studs or bolts Package Quantity: 100 units

Applications

Adjustment points on industrial machinery and test equipment

Access panels on electrical enclosures and instrument cases

Cabinet doors and drawers in workshop and laboratory furniture Jigs, fixtures, and prototyping setups requiring tool-less adjustment

Consumer and commercial appliance service panels Replacement hardware for worn or damaged knobs on existing equipment

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Frequently Asked Questions

What are the key specifications of Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100?
Key specifications for Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100: Material: Plastic, Finish: Black, Size: 3.21x0.83 in. See the full specification table on this page for complete details. If you need help confirming whether this product fits your application, use our AI Sourcing Assistant or submit an RFQ with your requirements.
What is the minimum order quantity and bulk pricing for Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100?
The minimum order quantity is 1 unit(s). Unit price starts at $99.99. Volume discounts are available — see the tiered pricing table on this page for exact breakpoints. For quantities beyond what is listed, or for custom pricing on recurring orders, submit an RFQ and our team will respond within 24 hours.
What is the lead time and availability for Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100?
This product is currently in stock and ships within 1-2 business days. Estimated lead time: 2-3 weeks. For bulk orders, lead times may vary based on quantity — request a quote for a confirmed delivery date. We can also arrange scheduled recurring shipments to prevent stockouts.
How do I get a custom quote for Plastic Black Hand Knob, 3.21 in Diameter, 1/4-20 UNC Thread, Pkg Qty 100?
Click the "Request a Quote" button on this page or visit our RFQ form. Include your required quantity, delivery location, and any special requirements (specific certifications, custom packaging, recurring delivery schedule). Our sourcing team typically responds within 24 hours with pricing, confirmed lead time, and shipping options.