1 x Bolt Partial Thread Hexagonal Head 3/8X 2 3/4" Unf Grade 5 Zinc Plated

1 x Bolt Partial Thread Hexagonal Head 3/8X 2...

1 x Bolt Partial Thread Hexagonal Head 3/8X 2 3/4" Unf Grade 5 Zinc Plated

Name: 1 x Bolt Partial Thread Hexagonal Head 3/8X 2 3/4" Unf Grade 5 Zinc Plated
Brand: Screw Express
SKU: 4129107102
Price: 4.25 EUR
Availability: InStock

Reference 4129107102_1

In stock 10685 Pièces

€4.25 Incl VAT

Decreasing prices by quantity

Number of pieces	1	10	100	500
Lot price VAT included	€4.25	€8.45	€20.15	€95.65

ANSI B18-2-1, VS4126 - Bolt Partial Thread Hexagonal Head 3/8X 2 3/4" Unf Grade 5 Zinc Plated
1 inch = 25.4mm

Packaging

1 unit
10 units
100 units
500 Units

See all available dimensions in this range Correspondence table inches and mm

Product Details

Diameter: 3/8
Length

Length

How do I measure the length of a screw?

The length of a countersunk screw is measured with the head. For all other heads, the length is measured under the head.: 2"3/470
Pitch: Pitch Unf
Material: Steel
Coating: Zinc Plated

Zinc Plated

Zinc plating 3 to 5 µm

All our zinc-plated parts meet this specification (unless otherwise stated).

🛡️ Corrosion protection: low
Thin 3 to 5 µm zinc coating, suitable for environments with low exposure.

🧂 Salt spray resistance: 24 to 96 h
Indicative resistance before the appearance of rust, depending on the coating finish.

🏠 Recommended environment
Indoor applications or environments with very low exposure to moisture.

🔩 Threads preserved
The low coating thickness limits dimensional variations and helps maintain thread accuracy.
COLOR: Grey
Product Family: Bolts Hexagonal Head
Number of threads per inch

Number of threads per inch

How to determine the diameter of a UNC or UNF screw:

The number of threads per inch will determine the diameter of the screw or nut of an American UNC or UNF screw.

Simply count the number of threads per inch (i.e. 25.4 mm) and refer to the table below.

For diameter 1 inch: 8 threads for 1 inch (25.4 mm) = UNC THREAD

Ø in inches

Ø in mm

Number of threads/inch in UNC

Number of threads/inch in UNF (fine pitch)

N°0

1.524

80

N°1

1.854

64

72

N°2

2.184

56

64

N°3

2.515

48

56

N°4

2.845

40

48

N°5

3.175

40

44

N°6

3.505

32

40

N°8

4.166

32

36

N°10

4.826

24

32

N°12

5.486

24

28

1/4

6.35

20

28

5/16

7.938

18

24

3/8

9.525

16

24

7/16

11.113

14

20

1/2

12.7

13

20

9/16

14.288

12

18

5/8

15.875

11

18

3/4

19.05

10

16

7/8

22.225

9

14

1”

25.4

8

14

1”1/8

28.575

7

12

1”1/4

31.75

7

12

1“1/2

38.1

6

12

1”3/4

44.45

5

-: 24
Diameter in mm: 9,525
Unit weight: 43.8 GR
Head shape: Hex Head

In stock 10685 Items

ean13 3663072082779

Description

Bolt Partial Thread Hexagonal Head 3/8X 2 3/4" Unf Grade 5 Zinc Plated
Diameter = 3/8, Length = 2 3/470", Coating = Zinc Plated, Material = Steel, Pitch = Pitch Unf, Product Family = Bolts Hexagonal Head

dimensional guide (mm)

DIAMETRE en pouce	1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1
Head Tickness	0.158	0.206	0.238	0.286	0.318	0.398	0.473	0.553	0.617
Across flats	0.4375	0.5	0.5625	0.625	0.75	0.9375	1.125	1.3125	1.5
PAS UNF(nbre de filets au pouce (sur 25.4mm))	28	24	24	20	20	18	16	14	12
1 pouce = 25.4 mm

Other Reference : 3617501917668 P54170 3663072082779

Use Cases

Marc L. (vis-express.fr)
2025-11-16

This product will be used to assemble an engine mount with the engine For a Land Rover 2.25L engine

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Inches	mm	Inches	mm
1/8	3,2	2"1/4	57
3/16	4,8	2"1/2	64
1/4	6,3	2"3/4	70
5/16	8	3"	76
3/8	9,5	3"1/4	83
7/16	11	3"1/2	89
1/2	13	4"	102
5/8	16	4"1/2	114
3/4	19	5"	127
7/8	22	5"1/2	140
1"	25	6"	152
1"1/4	32	6"1/2	165
1"1/2	38	7"	178
1"3/4	45	8"	203
2"	51	9"	229
		10"	254

Ø in inches	Ø in mm	Number of threads/inch in UNC	Number of threads/inch in UNF (fine pitch)
N°0	1.524		80
N°1	1.854	64	72
N°2	2.184	56	64
N°3	2.515	48	56
N°4	2.845	40	48
N°5	3.175	40	44
N°6	3.505	32	40
N°8	4.166	32	36
N°10	4.826	24	32
N°12	5.486	24	28
1/4	6.35	20	28
5/16	7.938	18	24
3/8	9.525	16	24
7/16	11.113	14	20
1/2	12.7	13	20
9/16	14.288	12	18
5/8	15.875	11	18
3/4	19.05	10	16
7/8	22.225	9	14
1”	25.4	8	14
1”1/8	28.575	7	12
1”1/4	31.75	7	12
1“1/2	38.1	6	12
1”3/4	44.45	5	-