Carr Lane Mfg. Co.St. Louis, MO
 
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Phone: 314-647-6200
Fax: 314-647-5736
 
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 Four-Prong Knobs, in Metal and Plastic
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 Hand Knobs Aluminum
 
FEATURES: Classic, easy-to-grip aluminum clamping knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Choice of five knob sizes, each available blank, tapped, tapped through, or reamed. Available with tapped-hole sizes from 1/4-20 to 3/4-10 (M6 to M20 in metric) and reamed hole sizes from 1/4 to 3/4 (6mm to 20mm in metric) .
 
MATERIAL: 319 aluminum alloy.
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 Hand Knobs Cast Iron
 
FEATURES: Classic, easy-to-grip cast iron clamping knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Choice of five knob sizes, each available blank, tapped, tapped through, or reamed. Available with tapped-hole sizes from 1/4-20 to 3/4-10 (M6 to M20 in metric) and reamed hole sizes from 1/4 to 3/4 (6mm to 20mm in metric).
 
MATERIAL: Cast iron, zinc plated clear chromate.
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 Hand Knobs Stainless Steel
 
Now Also Available in Metric!
 
FEATURES: High-quality, stainless steel knob with a beautiful polished finish. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Choice of two knob sizes, each available blank, tapped, tapped through, or reamed. Available with tapped-hole sizes from 1/4-20 to 5/8-11 (M6 to M20 in metric) and reamed hole sizes from 1/4 to 3/4 (6mm to 20mm in metric).
 
MATERIAL: 300-series stainless steel.
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 Quick-Acting Knobs
 
FEATURES: Quick-acting four-prong knob that slides in and out of clamping position, ideal when the knob must be completely removed for loading. Tilt knob to slide in, then straighten to engage threads and tighten. To remove, loosen knob, then tilt to slide out. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Available with tapped-hole sizes from 1/4-20 to 5/8-11 (M6 to M16 in metric).
 
MATERIAL: Sintered iron, black oxide finish.
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 Four-Prong Knobs

Phenolic Tapped
 
Now Also Available in Metric!
 
FEATURES: Easy-grip phenolic knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque. Molded-in brass insert provides superior thread strength. Also available with molded-in steel stud.
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 Four-Prong Knobs

Phenolic Tapped Through Hole
 
SIZES: Choice of three knob sizes. Available in the three configurations shown: tapped, tapped through hole, and stud type. Available with tapped-hole sizes from #10-32 to 1/2-13 (M6 to M10 in metric), and stud sizes from #10-32 to 1/2-13 (M6 to M10 in metric), most in several stud lengths. Non-standard thread sizes, reamed holes, other lengths of molded-in studs, or special colors are available in quantities of 250 and above.
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 Four-Prong Knobs

Phenolic Stud Type
 
MATERIAL: Black phenolic plastic (glossy smooth finish, extremely hard, electrical insulator, operating temperatures to 300°F, resistant to oils and most common chemicals). Molded-in brass insert (or mild steel stud, zinc plated clear chromate).
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 Four-Prong Knobs

Thermoplastic Tapped
 
FEATURES: Thermoplastic knob with a textured non-slip, non-glare finish. Four-prong design provides a firm grip for applications requiring quick tightening and high torque. Molded-in brass insert provides superior thread strength.
 
SIZES: One knob size, available either tapped or with a tapped through hole. Available with tapped-hole sizes from 5/16-18 to 3/8-16. Non-standard thread sizes, reamed holes, molded-in studs, or special colors are available in quantities of 250 and above.
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 Four-Prong Knobs

Thermoplastic Tapped Through Hole
 
MATERIAL: Black thermoplastic (textured surface for secure gripping, excellent impact resistance, operating temperatures to 150°F). Molded-in brass insert.
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 Hand Knob Assemblies
 
FEATURES: Hand knob with a clamping screw cast securely in place. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Choice of three knob sizes. Available in thread sizes from 1/4-20 to 3/4-10 (M6 to M20 in metric), most in a choice of several thread lengths.
 
MATERIAL: Knob > 319 aluminum alloy. Screw > 12L14 steel, black oxide finish.
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 Knob Shoe Assemblies
 
FEATURES: Hand knob assembly with a removable swivel foot. Clamping screw is cast securely in the knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Choice of four knob sizes. Available in thread sizes from 1/4-20 to 3/4-10 (M6 to M20 in metric), most in a choice of several thread lengths.
 
SWIVEL FOOT: Knob Shoe Assemblies use our patented left-hand-thread swivel-foot system. The ball end of the body screws into the foot for easy installation and removal. Once the ball threads pass beyond the foot threads, the foot can rotate and pivot freely (20° total angle). Foot threads are left-hand to positively prevent accidental backout during use. Delrin® feet are optional. To order with a Delrin® foot, add "N" to the part number, e.g. CL-1-KSAN. Note: Delrin® feet are not threaded – they snap on and off. For other foot types, see Feet for Swivel Screws (order separately).
 
MATERIAL: Knob > 319 aluminum alloy. Screw > 12L14 steel, black oxide finish. Steel foot > 12L14 steel, black oxide finish. Delrin® foot > white Delrin® 500.
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 Bar-Lok™ Quick-Acting Screw Clamps
Knob Handle
 
FEATURES: Definitely the best quick-acting screw clamp available anywhere. This patented grooved-bar design works smoothly and positively – just slide the bar forward to contact the workpiece, then turn clockwise to apply force. To unclamp, turn counterclockwise and slide the bar back. As strong as a standard screw clamp, but much faster. Four-prong knob provides a firm grip for applications requiring quick tightening and high torque.
 
SIZES: Available in 3/8", 1/2", and 5/8" bar sizes, each in a choice of several lengths.
 
SWIVEL FOOT: Choice of four foot types. Bar-Lok Quick-Acting Screw Clamps use our patented left-hand-thread swivel-foot system. The ball end of the body screws into the foot for easy installation and removal. Once the ball threads pass beyond the foot threads, the foot can rotate and pivot freely (20° total angle). Foot threads are left-hand to positively prevent accidental backout during use. Delrin® feet are optional for types A and B. To order with a Delrin® foot, add "N" to the part number, e.g. CL-14-BLKBN. Note: Delrin® feet are not threaded – they snap on and off.
 
MATERIAL: Clamping bar and collar > 12L14 steel, carburized-hardened, zinc plated yellow chromate. Knob > 319 aluminum alloy. Steel foot > 12L14 steel, zinc plated yellow chromate. Delrin® foot > white Delrin® 500.
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