Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1/2"

Diameter - Thread Pitch: 1/4"-20

Quantity	Unit price
To 99	$0.72*
To 999	$0.47*
From 1000	$0.43*

ANSI: B18.6.3
Color: Bronze
Color May Vary: Color and sheen may vary
Condition: New
Corrosion Resistant: Yes

Countersink: 82 Degree
Diameter: 1/4"
Drive Style: Slotted
Head Type: Flat Head
Thread Direction: Right Hand
Thread Type: Coarse
Fit: 2A
Head Diameter: Max 0.507 - Min 0.452
Head Style: Flat
Length: 1/2"
Marine Grade: Yes
Material: Silicon Bronze
Overall Head Height: Max 0.153 - Min 0.131
Part Number: 720572174533
Product Type: Machine Screws
Size System: US
Size Type: Regular
Standards Met: ANSI B18.6.3
System of Measurement: Inch
Thread Diameter: (1/4") Max 0.2489 - Min 0.2408
Thread Direction: Right Hand
Thread Pitch: 20 Per Inch
Thread Size: 1/4"-20
Thread Standard: UNC
Thread Type: Coarse
Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Weight: 1 lb

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Alloy 651 Silicon Bronze for excellent corrosion resistance
ASME Standards specific
A machine screw is commonly identified by its small size
Countersunk head that runs flush with application surface
Used in marine, corrosive and high heat environments
Often used in plumbing and electrical applications

1/4"-20 Slotted flat head machine screws made of silicon bronze.
NOTE: Color and sheen may vary

Note: All Silicon Bronze products will develop a patina based on the environment and time. These fasteners are not coated with any sealants to prevent a patina from forming. Depending on when the product was manufactured, you may receive a product that has started to develop a patina.

SIZE/SKU	SELECT PACKAGE QUANTITY			SUBTOTAL
1/4"-20 x 1/2" 5900-016-0002	1 $0.72 (0.72/ea)	100 $47.00 (0.47/ea)	1000 $430.00 (0.43/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1/2" $0.00
1/4"-20 x 5/8" 5900-016-0012	1 $0.80 (0.8/ea)	100 $54.00 (0.54/ea)	1000 $500.00 (0.5/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 5/8" $0.00
1/4"-20 x 3/4" 5900-016-0022	1 $0.84 (0.84/ea)	100 $57.00 (0.57/ea)	1000 $520.00 (0.52/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 3/4" $0.00
1/4"-20 x 1" 5900-016-0032	1 $0.90 (0.9/ea)	100 $64.00 (0.64/ea)	1000 $590.00 (0.59/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1" $0.00
1/4"-20 x 1-1/4" 5900-016-0042	1 $1.01 (1.01/ea)	100 $67.00 (0.67/ea)	1000 $620.00 (0.62/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1-1/4" $0.00
1/4"-20 x 1-1/2" 5900-016-0052	1 $1.18 (1.18/ea)	100 $81.00 (0.81/ea)	1000 $740.00 (0.74/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1-1/2" $0.00
1/4"-20 x 1-3/4" 5900-016-0062	1 $1.65 (1.65/ea)	100 $114.00 (1.14/ea)	1000 $1,050.00 (1.05/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 1-3/4" $0.00
1/4"-20 x 2" 5900-016-0072	1 $1.70 (1.7/ea)	100 $119.00 (1.19/ea)	1000 $1,100.00 (1.1/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 2" $0.00
1/4"-20 x 2-1/2" 5900-016-0082	1 $1.87 (1.87/ea)	100 $135.00 (1.35/ea)	1000 $1,240.00 (1.24/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 2-1/2" $0.00
1/4"-20 x 3" 5900-016-0092	1 $2.28 (2.28/ea)	100 $167.00 (1.67/ea)	1000 $1,540.00 (1.54/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 3" $0.00
1/4"-20 x 3-1/2" 5900-016-0102	1 $2.36 (2.36/ea)	100 $195.00 (1.95/ea)	1000 $1,800.00 (1.8/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 3-1/2" $0.00
1/4"-20 x 4" 5900-016-0112	1 $2.43 (2.43/ea)	100 $205.00 (2.05/ea)	1000 $1,890.00 (1.89/ea)	Quantity for Machine Screws, Slotted Flat Head, Silicon Bronze, 1/4"-20 x 4" $0.00

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