10BestProductReview 
Best results for 1/4-20 thread drill size
Greenlee DTAP1/4-20 Combination Drill and Tap Bit, 1/4-20NC
$7.92
$11.25
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
DEWALT DWADT1420 20 UNC Drill Tap, 1/4"
Helicoil 5521-4 1/4-20 Inch Coarse Thread Repair Kit
$16.79
$20.32
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- The product is 1/4-20thread repair kit
- Easy and simple use kit
- The product is manufactured in china
- Includes 12 inserts, complete instructions, Heli-Coil tap and installation tool
- Used for repairing tapped holes
- Made from high quality material
Greenlee DTAPKIT 6-32 to 1/4-20 6-Piece Combination Drill and Tap Set
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
Irwin Tools 2620- 3 Piece High Carbon Steel- Tap 1/4" – 20 NC
Alfa Tools CSHTS70532 1/4-20 Carbon Steel Hand Tap Set Taper/Plug/Bottom
$14.20
$19.45
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Hand tap 3-piece set
- 1/4-Inch-20 national coarse thread size
- Contains 1 each: taper, plug, Bottoming
- Precision-made from high carbon tool steel
- ideal for hand threading in routine maintenance, repair work and for Rethreading applications
- Quantity: 1 set of 3 boxed
YG-1 F4 Series Vanadium Alloy HSS Spiral Flute Tap, Steam Oxide, Round Shank with Square End, Bottoming Chamfer, 1/4"-20 Thread Size, H3 Tolerance
$10.69
$15.39
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
- Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
POWERTEC 71121 16 Piece 5/16-Inch T-Bolt Kit, 16 PCS
1/4-20 x 2 1/2 Flat Head Floorboard Thread Cutting Screws, Type F, (Star – Six Lobe – Torx Drive), Black Phosphate Finish, Countersunk, T-30 Drive (Carton: 100pcs) Alloy Steel
$23.95
$32.57
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Floor board screws are specially designed for installing wood floors into truck trailers
- Six-Lobe Recess Flat Heads (Floorboard)
- Self Tapping Thread Cutting Screws - Measure length from the top of the head to the tip
- Black Phosphate and Oil Finish. The oil serves as a rust inhibitor and a lubricant
- The head design of Floorboard Screws provide a flush surface in countersunk holes. For this reason, they are perfect in floorboard fastening applications.
Best Choice 40-Piece Tap and Die Set – SAE Inch Sizes | Essential Threading Tool with Storage Case
$26.99
$35.90
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- PREMIUM MATERIAL AND DURABILITY: Industrial grade GCr15 bearing steel construction ensures durability and tool longevity
- EXCELLENT CUTTING PERFORMANCE: All cutting teeth are precisely CNC machined and accurately heat treated to Rockwell hardness 60 HRC for best threading performance
- TAPERED TEETH DESIGN: Tapered coarse and fine taps and dies start threading more easily and smoothly, and prevent overthreading
GP12710 Hook and Loop Rotary Backing Pad with 1/4”-20 Thread, Sanding or Polishing Backer Pad/Diameter 3 inch
AUTOTOOLHOME Combination Drill and Tap Bit 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Set of 6
$11.89
$17.36
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel (HSS 4341) vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
E-Z LOK 400-4-CR Threaded Inserts for Wood, Installation Kit, Stainless Steel, Includes 1/4-20 Knife Thread Inserts (6), Drill, Installation Tool
Drill America 1/4"-20 Carbon Steel Left Hand (Reverse) Hex Rethreading Die, DWT Series
IVY Classic 44688 1/4"-20 Hanger Bolt Driver, Impact Plus, 1/Card
$6.08
$8.57
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Allows drills or impact drivers to drive hanger bolts and threaded rods
- Internal threads and ball shaped stop at base of hanger bolt driver allow for easy thread release
- Alloy-Steel for extra strength and durability
- Built to withstand the high torque (rotational force) of impact drivers, Impact Plus (Registered Trademark)
- Thread Size: 1/4" - 20, Length: 1-5/8", Shank: 1/4" hex power
E-Z Lok Threaded Insert, Zinc, Hex-Flanged, 1/4"-20 Internal Threads, 25mm Length (Pack of 50)
$17.43
$24.05
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Provides a Strong Machine Thread In Soft Woods
- Ideal For Use in Pine, Plywood, Composition Board, and MDF
- Designed For Use In Applications Such As Ready-To-Assemble Furniture, Drawer Pulls, Display Case, and Shipping Crates
- Simply Drill the Appropriately Sized Hole and Install with Hex Key or Optional Drive Tool
- Tapered External Threads Resist Pull-Out Caused By Vibration
LQ Industrial 30pcs 25mm Furniture Screw-in Nut Zinc Alloy Bolt Fastener Connector Hex Socket Drive Threaded Insert Nuts For Wood Furniture Assortment 1/4"-20
Amazon.com
Last update was on: July 27, 2024 12:11 pm
- Material: Made of high quality zinc alloy, with good room temperature mechanical properties and wear resistance, can keep thread integrity after multi times use.
- Color: Zinc alloy color
- Usage: Pre-drill (drill a proper hole, suggest 9.6 +/- 0.2mm), screw in with internal hex tool. Unique self-tapping designed external thread, contribute to tapping, with good tensile resistance, can effectively prevent stripped.
