Wood Screws

Listing ID #4865955

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53.2
62.8
34.1
82.2
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Product Details

1 5.3
4 3.6
2 4.7
5 3.2
BA Screwsize Metric outside diameter (mm)
8 2.2
6 2.8
7 2.5
3 4.1

Phillips flat head Wood Screws Manufacturers Suppliers in India

Flat heads are countersunk (cone shaped under the head) with a flat top. Phillips drives are X shaped for a phillips screw driver.

Stainless steel 18-8
Zinc plated steel
Brass
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Frearson flat head Wood Screws Manufacturers Suppliers in India

Frearson flat head
Flat heads are countersunk (cone shaped under the head) with a flat top. Frearson drives are X shaped similar to phillips drive.

Silicon bronze
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Slotted flat head Wood Screws Manufacturers Suppliers in India

Slotted flat head
Flat heads are countersunk (cone shaped under the head) with a flat top. Slotted drives are simple slots for a flat bladed screw driver.

Stainless steel 18-8
Zinc plated steel
Brass
Silicon bronze
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Slotted oval head Wood Screws Manufacturers Suppliers in India

Slotted oval head
Oval heads are countersunk (cone shaped under the head) with a rounded top. Slotted drives are simple slots for a flat bladed screw driver.

Stainless steel 18-8
Brass
Silicon bronze
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Phillips round head Wood Screws Manufacturers Suppliers in India

Phillips round head
Round heads are domed and look like half of a sphere. Phillips drives are X shaped for a phillips screw driver.

Zinc plated steel
Brass
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Slotted round head Wood Screws Manufacturers Suppliers in India

Slotted round head
Round heads are domed and look like half of a sphere. Slotted drives are simple slots for a flat bladed screw driver.

Stainless steel 18-8
Zinc plated steel
Brass
Silicon bronze

Wood Screws Dimensions

Approximate hole sizes for wood screws - hard wood and soft wood - are indicated below:

Nominal Screw Size	Nominal Shank Diameter (in)	Actual Shank Diameter (in)	Twist Drill Size
			Pilot Holes				Shank Clearance Holes		80o Countersink Diameter
			Hard Wood		Soft Wood		Shank Clearance Holes		80o Countersink Diameter
			Inch	No.	Inches	No.	Inch	No.	Actual Head Diameter (in)	Diameter (in)
# 0	0.060	0.064	3/64	58	1/32	69	1/16	52	0.119	1/8
# 1	0.073	0.077	3/64	55	1/32	65	5/64	47	0.146	3/16
# 2	0.086	0.090	1/16	53	3/64	59	3/32	42	0.172	3/16
# 3	0.099	0.103	1/16	51	3/64	56	7/64	37	0.199	1/4
# 4	0.112	0.116	5/64	48	3/64	55	7/64	32	0.225	1/4
# 5	0.125	0.129	5/64	44	1/16	53	1/8	30	0.252	1/4
# 6	0.138	0.142	3/32	42	1/16	52	9/64	27	0.279	3/8
# 7	0.151	0.155	3/32	38	1/16	50	5/32	22	0.305	3/8
# 8	0.164	0.168	7/64	35	5/64	48	11/64	18	0.332	3/8
# 9	0.177	0.181	1/8	32	5/64	46	3/16	14	0.358	3/8
# 10	0.190	0.194	1/8	30	3/32	44	3/16	10	0.385	1/2
# 11	0.203	0.207	1/8	29	3/32	43	13/64	4	0.412	1/2
# 12	0.216	0.220	9/64	27	3/32	39	7/32	2	0.438	1/2
# 14	0.242	0.246	5/32	20	7/64	34	1/4	D	0.507	1/2
# 16	0.268	0.272	3/16	16	1/8	31	17/64	I	0.544	5/8
# 18	0.294	0.298	3/16	10	9/64	29	19/64	N	0.635	5/8
# 20	0.320	0.324	7/32	3	5/32	26	21/64	P	0.650	3/4
# 24	0.372	0.376	1/4	D	11/64	18	3/8	V	0.762	3/4

Standard Wood Screw Sizes and Predrilling Recommendations

Screw Size (Gauge)

#10

#12

#14

#16

#18

Head Bore Size

Actual Head Size

11/64

13/64

15/64

1/4

9/32

5/16

11/32

23/64

25/64

7/16

1/2

35/64

39/64

Min. Counterbore Dia.

1/4

5/16

3/8

7/16

1/2

9/16

5/8

Recommended Size

1/4

5/16

3/8

1/2

5/8

Screw Shank - Hole Size

3/32

7/64

1/8

9/64

5/32

11/64

3/16

13/64

7/32

1/4

9/32

5/16

Straight Pilot Drill Size

Hardwood

1/16

5/64

3/32

7/64

1/8

9/64

5/32

11/64

3/16

7/32

Softwood

1/16

5/64

3/32

7/64

1/8

9/64

5/32

11/64

13/64

Tapered Pilot Drill Size

Hardwood

3/32

7/64

1/8

9/64

5/32

11/64

3/16

13/64

7/32

1/4

9/32

5/16

Softwood

5/64

3/32

7/64

1/8

9/64

5/32

11/64

3/16

13/64

15/64

17/64

19/64

Recommended Countersink Number

C102

C12

C14

C169

C18

Drill Length Recommendations for Countersink/Taper Point Drill Combos

Screw Size (Gauge)

#10

#12

#14

#16

#18

Tapered Drill Size

3/32

7/64

1/8

9/64

5/32

11/64

3/16

13/64

7/32

1/4

9/32

5/16

Short Length Drill

Min. Screw Length

1/4

5/16

3/8

7/16

1/2

5/8

11/16

3/4

7/8

3/4

13/16

7/8

Max. Screw Length *

5/8

11/16

5/8

11/16

13/16

7/8

15/16

1-1/8

1-1/4

1-7/16

1-9/16

Regular Length Drill

Min. Screw Length

3/8

7/16

1/2

9/16

5/8

3/4

13/16

15/16

1-1/8

1-1/4

1-3/8

Max. Screw Length **

1-1/2

1-3/8

1-1/2

1-3/4

1-7/8

2-1/8

2-1/4

2-3/8

2-5/8

2-5/16

2-11/16

Long Length Drill

Min. Screw Length

9/16

5/8

11/16

3/4

7/8

15/16

1-1/16

1-1/8

1-5/16

1-7/16

1-9/16

Max. Screw Length***

1-3/4

1-7/8

2-1/8

2-3/8

2-3/4

3-1/8

3-1/16

3-3/16

8” Long Drills

Min. Screw Length

N/A

3/4

13/16

1-1/16

1-3/16

1-1/4

1-1/2

1-5/8

1-3/4

Max. Screw Length***

N/A

4-3/4

4-11/16

* = 1/2” to 3/4” of shank for chucking ** = 3/4” to 1” of shank for chucking *** = Set screws positioned at end of twist

Diameter		Common Lengths		Clearance Hole		Pilot Hole
Gauge	Metric	Imperial	Metric	Imperial	Metric	Imperial	Metric
2	2.0	1/4 - 1/2	6.5 - 13	3/32	2.5	1/16	1.6
3	2.5	3/8 - 1	10 - 25	7/64	3.0	1/16	1.6
4	3.0	1/4 - 11/2	6.5 - 38	1/8	3.5	5/64	2.0
6	3.5	3/8 - 21/2	10 - 65	5/32	4.0	5/64	2.0
8	4.0	3/8 - 31/2	10 - 90	3/16	5.0	3/32	2.5
10	5.0	1/2 - 4	13 - 100	7/32	5.75	1/8	3.5
12	5.5	3/4 - 5	19 - 125	1/4	6.5	1/8	3.5
14	6.5	11/4 - 6	32 - 150	1/4	6.5	5/32	4.0

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Company Details

The K.M Steel India stocks a large inventory of fasteners for commercial, industrial, utility, and OEM installations. We have Fasteners such as screws, Grade A307 , Grade A194 Bolts, nuts, washers, and studs available in several grades and materials. Along with the standard fasteners we also stock B7 bolts & studs and stainless steel, nuts, Draw Bolts, bolts, and washers. We also carry a large inventory of mechanical anchors such as, drop-ins, wedge anchors, tapcons, lead, plastic, and hollow wall anchors.