System of Measurement
Length
Length
1/16"
5/64"
3/32"
7/64"
1/8"
9/64"
5/32"
11/64"
3/16"
7/32"
0.22"
15/64"
1/4"
17/64"
0.28"
9/32"
0.29"
19/64"
5/16"
11/32"
0.35"
23/64"
3/8"
25/64"
0.41"
27/64"
7/16"
29/64"
0.46"
0.48"
0.5"
1/2"
0.52"
17/32"
0.54"
0.56"
9/16"
0.563"
37/64"
19/32"
5/8"
21/32"
11/16"
3/4"
25/32"
13/16"
53/64"
27/32"
0.85"
7/8"
0.9"
15/16"
0.95"
1 1/2ft.
1 ft.
1"
1 1/32"
1 3/64"
1 1/16"
1 5/64"
1 3/32"
1.1"
1 1/8"
1 3/16"
1 1/4"
1 9/32"
1 5/16"
1 21/64"
1 11/32"
1 3/8"
1 7/16"
1 1/2"
1 17/32"
1 37/64"
1 19/32"
1 5/8"
1 11/16"
1 3/4"
1 53/64"
1 27/32"
1 7/8"
1 15/16"
2 1/2ft.
2 ft.
2"
2 1/32"
2 5/64"
2 3/32"
2 1/8"
2 3/16"
2 1/4"
2 5/16"
2 3/8"
2 7/16"
2 1/2"
2 37/64"
2 19/32"
2 5/8"
2 3/4"
2 15/16"
3 ft.
3"
3 1/16"
3 5/64"
3 3/32"
3 3/16"
3 1/4"
3 3/8"
3 1/2"
3 9/16"
3 19/32"
3 3/4"
3 13/16"
3 15/16"
4 ft.
4"
4 3/32"
4 1/4"
4 3/8"
4 7/16"
4 1/2"
4 11/16"
4 3/4"
4 7/8"
5"
5 1/16"
5 1/4"
5 5/16"
5 1/2"
5 3/4"
5 7/8"
6 ft.
6"
6 3/16"
6 1/4"
6 1/2"
6 9/16"
6 3/4"
7"
7 1/4"
7 1/2"
8 ft.
8"
8 1/2"
9"
9 1/2"
10"
10 1/2"
11"
11 1/2"
12 ft.
12"
12 1/2"
13"
13 1/2"
14"
14 1/2"
15"
16"
18"
20"
12ft.
1ft.
2ft.
3ft.
4ft.
5ft.
6ft.
8ft.
1 mm
2 mm
2.5 mm
3 mm
4 mm
5 mm
5.6 mm
6 mm
6.5 mm
7 mm
7.2 mm
7.5 mm
8 mm
8.8 mm
9 mm
9.5 mm
10 mm
10.4 mm
10.8 mm
11 mm
11.2 mm
12 mm
12.8 mm
13 mm
13.2 mm
13.7 mm
14 mm
14.5 mm
15 mm
15.5 mm
16 mm
16.8 mm
17.2 mm
17.5 mm
17.7 mm
18 mm
19 mm
20 mm
20.8 mm
21.2 mm
21.7 mm
22 mm
24 mm
24.5 mm
25 mm
25.8 mm
26 mm
26.2 mm
26.7 mm
27 mm
28 mm
28.3 mm
30 mm
31 mm
31.2 mm
31.7 mm
32 mm
33 mm
34 mm
35 mm
36 mm
36.7 mm
38 mm
38.3 mm
39 mm
40 mm
41.7 mm
42 mm
44.2 mm
45 mm
50 mm
52 mm
53.3 mm
54.7 mm
55 mm
60 mm
64.2 mm
65 mm
70 mm
75 mm
80 mm
84.7 mm
85 mm
90 mm
95 mm
100 mm
105 mm
110 mm
115 mm
120 mm
125 mm
130 mm
135 mm
140 mm
145 mm
150 mm
155 mm
160 mm
165 mm
170 mm
175 mm
180 mm
185 mm
190 mm
195 mm
200 mm
205 mm
210 mm
215 mm
220 mm
230 mm
240 mm
260 mm
280 mm
300 mm
320 mm
340 mm
360 mm
400 mm
500 mm
1900 mm
13/32"
35 ft.
91 ft.
Material
302 Stainless Steel
303 Stainless Steel
304 Stainless Steel
316 Stainless Steel
316 Stainless Steel,Blue-PTFE-Coated 316 Stainless Steel
360 Brass
400 Nickel
410 Stainless Steel
430 Stainless Steel
450 Stainless Steel
651 Silicon Bronze
2024 Aluminum
6061 Aluminum
7075 Aluminum
17-4 PH Stainless Steel
18-8 Stainless Steel
18-8 Stainless Steel,304 Stainless Steel
316L Stainless Steel
A286 Stainless Steel
Acetal Plastic
Alloy 20 Stainless Steel
Alloy Steel
Alumina Ceramic
Aluminum
Black Corrosion-Resistant-Coated Steel
Black Oxide 18-8 Stainless Steel
Black Oxide Alloy Steel
Black Oxide Steel
Black Phosphate Steel
Black-Oxide 12L14 Steel
Black-Oxide 18-8 Stainless Steel
Black-Oxide Alloy Steel
Black-Oxide Steel
Black-Oxide18-8 Stainless Steel
Black-Phosphate Steel
Blue PTFE-Coated Steel
Blue-Anodized 2024 Aluminum
Blue-Anodized 7075 Aluminum
Blue-Dyed Zinc-Plated Alloy Steel
Blue-Dyed/Zinc-Plated Alloy Steel
Brass
Bumax 88 Stainless Steel
C276 Nickel
CU2/CU3 Brass
Cadmium-Plated Alloy Steel
Cadmium-Plated Steel
Carbon Fiber
Ceramic
Chrome Plated 18-8 Stainless Steel
Chrome-Plated 18-8 Stainless Steel
Fiberglass
Fluoroelastomer Rubber
Glass-Filled Nylon Plastic
Grade 2 Titanium
Grade 5 Titanium
Hot-Dipped Galvanized Steel
Nickel Alloy
Nylon 6/6 Plastic
Nylon Plastic
PEEK Plastic
PTFE Coated 18-8 Stainless Steel
PTFE Plastic
PTFE-Coated 18-8 Stainless Steel
PVC Plastic
Passivated 18-8 Stainless Steel
Passivated18-8 Stainless Steel
Polycarbonate Plastic
Polypropylene Plastic
Silicon Bronze
Silicone Rubber
Silver Plated 18-8 Stainless Steel
Silver-Plated 18-8 Stainless Steel
Steel
Zinc Alloy
Zinc Plated Alloy Steel
Zinc Yellow-Chromate Plated Steel
Zinc-Flake Coated Steel
Zinc-Flake-Coated Alloy Steel
Zinc-Plated Alloy Steel
Zinc-Plated Steel
Socket Head Profile
Head Diameter
Head Diameter
0.035"
0.04"
0.056"
0.06"
0.061"
0.062"
0.065"
0.082"
0.086"
0.089"
0.096"
0.107"
0.112"
0.113"
0.114"
0.116"
0.118"
0.119"
0.125"
0.126"
0.129"
0.131"
0.137"
0.138"
0.139"
0.14"
9/64"
0.141"
0.142"
0.143"
0.145"
0.153"
5/32"
0.16"
0.161"
0.162"
0.164"
0.167"
0.168"
0.17"
0.172"
0.174"
0.18"
0.181"
0.183"
0.187"
3/16"
0.188"
0.193"
0.195"
0.197"
0.2"
0.205"
0.208"
0.21"
0.211"
0.212"
0.213"
0.215"
7/32"
0.219"
0.224"
0.225"
0.226"
0.234"
0.235"
0.236"
0.237"
0.238"
0.245"
0.25"
1/4"
0.252"
0.255"
0.257"
0.26"
0.262"
0.263"
17/64"
0.266"
0.268"
0.27"
0.279"
0.28"
0.281"
9/32"
0.29"
0.294"
0.296"
19/64"
0.303"
0.307"
0.309"
0.312"
5/16"
0.313"
0.314"
0.32"
0.321"
0.322"
0.324"
0.327"
0.332"
0.333"
0.336"
11/32"
0.344"
0.347"
0.357"
0.359"
0.361"
0.362"
0.363"
0.365"
0.37"
0.373"
0.375"
3/8"
0.378"
0.384"
0.385"
25/64"
0.399"
0.4"
0.403"
0.406"
13/32"
0.408"
0.41"
0.411"
0.412"
0.413"
0.414"
27/64"
0.422"
0.425"
0.437"
7/16"
0.438"
0.444"
0.448"
0.45"
0.453"
29/64"
0.454"
15/32"
0.469"
0.472"
0.473"
0.476"
0.477"
0.485"
0.49"
0.492"
0.493"
0.5"
1/2"
0.505"
0.507"
0.51"
0.511"
0.516"
0.517"
0.518"
0.525"
0.531"
0.547"
0.556"
9/16"
0.563"
0.57"
0.573"
0.578"
37/64"
0.59"
0.594"
0.597"
0.601"
0.615"
0.622"
0.625"
5/8"
0.635"
41/64"
0.656"
21/32"
0.667"
11/16"
0.698"
0.708"
0.717"
0.719"
0.725"
0.729"
0.74"
0.75"
3/4"
0.755"
0.762"
0.765"
0.781"
0.813"
0.815"
0.823"
27/32"
0.844"
0.875"
7/8"
0.887"
0.937"
15/16"
0.938"
0.969"
0.987"
1"
1.094"
1.1"
1 1/8"
1.188"
1 1/4"
1 5/16"
1.344"
1.374"
1 3/8"
1.438"
1 1/2"
1.594"
1 11/16"
1.688"
1 3/4"
1.844"
1 7/8"
1.938"
2 1/16"
2 1/8"
2.188"
2 1/4"
2.438"
2 5/8"
2.938"
3"
3 3/8"
3 3/4"
0.81 mm
0.94 mm
1.27 mm
1.4 mm
1.42 mm
1.52 mm
1.9 mm
2 mm
2.3 mm
2.4 mm
2.5 mm
2.6 mm
2.9 mm
3 mm
3.03 mm
3.2 mm
3.4 mm
3.5 mm
3.65 mm
3.78 mm
3.8 mm
4 mm
4.2
4.24 mm
4.4 mm
4.5 mm
4.6 mm
4.7 mm
4.75 mm
4.8 mm
4.92 mm
5 mm
5.4 mm
5.46 mm
5.5 mm
5.59 mm
5.6
5.6 mm
5.68 mm
5.69 mm
5.7 mm
6 mm
6.02 mm
6.2 mm
6.3 mm
6.4 mm
6.5 mm
6.7 mm
6.71 mm
6.72 mm
6.8 mm
6.9
7 mm
7.2 mm
7.22 mm
7.5
7.5 mm
7.59 mm
7.6 mm
7.9 mm
8 mm
8.2
8.2 mm
8.23 mm
8.4 mm
8.5 mm
8.54 mm
8.69 mm
8.7 mm
8.72 mm
8.9 mm
8.94 mm
8.96 mm
9 mm
9.03 mm
9.1 mm
9.19 mm
9.2 mm
9.3 mm
9.4 mm
9.5
9.5 mm
9.9 mm
9.95 mm
9.98 mm
10 mm
10.2 mm
10.4 mm
10.49 mm
10.5 mm
10.7 mm
10.8
11 mm
11.2 mm
11.3 mm
11.5 mm
11.94 mm
11.99 mm
12 mm
12.06 mm
12.58 mm
12.6 mm
12.7 mm
12.8 mm
13 mm
13.4 mm
13.43 mm
13.44 mm
13.5 mm
13.55 mm
14 mm
14.2 mm
14.5 mm
15.8 mm
15.9 mm
16 mm
16.5 mm
16.55 mm
17 mm
17.3 mm
17.5 mm
17.91 mm
18 mm
19 mm
19.2 mm
19.5 mm
20 mm
20.65 mm
21 mm
22 mm
22.2 mm
22.3 mm
24 mm
24.65 mm
25 mm
26.6 mm
27 mm
28 mm
30 mm
30.65 mm
33 mm
35 mm
36 mm
38.8 mm
39 mm
40 mm
43 mm
45 mm
49 mm
50 mm
54 mm
63 mm
72 mm
0.562"
Thread Direction
Head Height
Head Height
0.011"
0.016"
0.018"
0.025"
0.026"
0.028"
0.03"
0.031"
0.032"
0.033"
0.035"
0.036"
0.037"
0.038"
0.039"
0.041"
0.042"
0.043"
0.044"
0.045"
0.046"
3/64"
0.047"
0.048"
0.049"
0.05"
0.051"
0.052"
0.053"
0.054"
0.055"
0.056"
0.058"
0.059"
0.06"
0.061"
0.062"
1/16"
0.063"
0.064"
0.066"
0.067"
0.068"
0.069"
0.07"
0.071"
0.072"
0.073"
0.075"
0.076"
0.078"
5/64"
0.08"
0.081"
0.082"
0.083"
0.084"
0.085"
0.086"
0.087"
0.089"
0.09"
0.092"
3/32"
0.094"
0.095"
0.096"
0.097"
0.098"
0.099"
0.1"
0.101"
0.102"
0.103"
0.105"
0.106"
0.107"
0.109"
7/64"
0.11"
0.112"
0.114"
0.115"
0.116"
0.118"
0.12"
0.123"
0.125"
1/8"
0.127"
0.128"
0.129"
0.13"
0.132"
0.133"
0.134"
0.135"
0.136"
0.137"
0.138"
9/64"
0.141"
0.144"
0.145"
0.146"
0.148"
0.15"
0.151"
0.153"
0.155"
0.156"
5/32"
0.157"
0.158"
0.161"
0.162"
0.164"
0.165"
0.166"
0.167"
0.168"
0.169"
11/64"
0.175"
0.176"
0.178"
0.18"
0.181"
0.183"
0.187"
3/16"
0.188"
0.19"
0.191"
0.192"
0.198"
0.199"
13/64"
0.205"
0.207"
0.208"
0.212"
0.215"
0.216"
0.218"
7/32"
0.22"
0.223"
0.23"
0.231"
0.234"
15/64"
0.237"
0.238"
0.239"
0.246"
0.247"
0.25"
1/4"
0.251"
0.256"
0.261"
0.265"
17/64"
0.266"
0.268"
0.27"
0.275"
0.28"
9/32"
0.285"
0.295"
19/64"
0.3"
0.312"
5/16"
0.313"
0.324"
0.328"
21/64"
0.331"
11/32"
0.344"
0.348"
0.355"
23/64"
0.372"
0.375"
3/8"
25/64"
0.396"
0.406"
13/32"
0.42"
27/64"
0.43"
7/16"
0.438"
0.44"
29/64"
0.459"
0.468"
15/32"
31/64"
0.5"
1/2"
33/64"
0.531"
17/32"
0.54"
35/64"
9/16"
0.563"
37/64"
39/64"
0.611"
5/8"
41/64"
43/64"
0.683"
11/16"
23/32"
47/64"
3/4"
25/32"
13/16"
0.827"
27/32"
55/64"
7/8"
15/16"
31/32"
63/64"
1"
1 3/32"
1 7/64"
1 1/8"
1 7/32"
1 1/4"
1 3/8"
1 1/2"
1 3/4"
2"
2 1/4"
2 1/2"
0.28 mm
0.38 mm
0.41 mm
0.5 mm
0.51 mm
0.6 mm
0.7 mm
0.72 mm
0.76 mm
0.8 mm
0.84 mm
0.86 mm
0.88 mm
0.9 mm
0.96 mm
0.97 mm
1 mm
1.1 mm
1.2 mm
1.3 mm
1.35 mm
1.38 mm
1.4 mm
1.42 mm
1.5 mm
1.54 mm
1.58 mm
1.6 mm
1.65 mm
1.7 mm
1.72 mm
1.8
1.8 mm
1.85 mm
1.86 mm
1.9 mm
1.93 mm
1.98 mm
2 mm
2.08 mm
2.1 mm
2.12 mm
2.15 mm
2.18 mm
2.2
2.2 mm
2.3 mm
2.33 mm
2.4 mm
2.48 mm
2.5 mm
2.52 mm
2.6
2.6 mm
2.63 mm
2.7 mm
2.74 mm
2.75 mm
2.8
2.8 mm
2.82 mm
2.9 mm
3 mm
3.01 mm
3.05 mm
3.1
3.1 mm
3.15 mm
3.2 mm
3.25 mm
3.28 mm
3.3 mm
3.4 mm
3.45 mm
3.5
3.5 mm
3.59 mm
3.6
3.6 mm
3.61 mm
3.7 mm
3.72 mm
3.8 mm
3.88 mm
3.9 mm
3.95 mm
4
4 mm
4.1 mm
4.2 mm
4.3
4.3 mm
4.39 mm
4.4 mm
4.45 mm
4.5 mm
4.6 mm
4.65 mm
4.7 mm
4.75 mm
4.8 mm
4.88 mm
4.9 mm
4.95 mm
5
5 mm
5.2 mm
5.3
5.3 mm
5.38 mm
5.4
5.4 mm
5.49 mm
5.5
5.5 mm
5.8 mm
5.9 mm
6
6 mm
6.1 mm
6.15 mm
6.4
6.4 mm
6.5 mm
6.6
6.6 mm
6.8 mm
6.95 mm
7
7 mm
7.5
7.5 mm
7.6 mm
7.7 mm
7.9
7.9 mm
8
8 mm
8.1
8.1 mm
8.4 mm
8.5 mm
8.7
8.8 mm
8.9 mm
8.95 mm
9
9 mm
9.2
9.2 mm
9.5 mm
10
10 mm
10.2 mm
10.4
10.6 mm
10.8 mm
10.9 mm
11
11 mm
11.2
11.3 mm
11.5
11.5 mm
11.7 mm
11.8
12
12 mm
12.5 mm
12.7 mm
12.8
13 mm
14 mm
14.3 mm
15 mm
15.2 mm
15.4
16
16 mm
17 mm
17.5 mm
18 mm
18.7 mm
19.6 mm
20
20 mm
22 mm
24 mm
27 mm
30 mm
33 mm
36 mm
42 mm
48 mm
Product Categories / Screws and Bolts

Screws and Bolts

49257 Products
Cap Screws
Cap Screws
With a deeper drive than flat and rounded head screws,these withstand more torque for a tighter hold
Rounded Head Screws
Rounded Head Screws
Sit just above the surface for a low-profile finish and hold tighter than flat head screws
Hex Head Screws
Hex Head Screws
Used with nuts to create a stronger joint than flat and rounded screws
Flat Head Screws
Flat Head Screws
Fit in countersunk holes for a flush finish
Tapping Screws
Tapping Screws
Fasten a range of materials together without needing to tap the hole first
Shoulder Screws
Shoulder Screws
Rotate parts around the cylinder under the head to guide and align them during installation
Set Screws
Set Screws
Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads
Thumb Screws
Thumb Screws
Tighten and loosen by hand without the need for tools
Carriage Bolts
Carriage Bolts
A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut
12-Point Screws
12-Point Screws
12 contact points handle more torque than a hex head while a flange eliminates the need for a washer
Captive Panel Screws
Captive Panel Screws
Secure panels and enclosures while still having access to them
Threaded Rods and Studs
Threaded Rods and Studs
Insert into holes to add a threaded fastening point for attaching nuts

Fastener classification

Fasteners also known as standard parts in the market, are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. It is characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization and generalization. Fasteners are the most widely used mechanical basic parts and are in high demand.

Fasteners usually include the following 12 categories: bolts, studs, screws, nuts,self-drilling screws, wood screws, washers, retaining rings, pins, rivets, assemblies and bolt connecting pairs, and welding nails.


The functions of each part of the fastener:

  • Bolt: a fastener consisting of a head and a screw, generally used in conjunction with a nut;
  • Stud: A fastener with threads on both ends;
  • Screw: A fastener consisting of a head and a screw, divided into machine screws, set screws and special purpose screws;
  • Nut: with internal threaded hole, used with bolts and studs;
  • self-drilling screws: similar to machine screws, but they are equipped with a drill bit or a drill-like point at the tip, allowing them to cut through the material as they are screwed in.
  • Wood screws: The threads on wood screws are special threads that can be screwed directly into wooden parts;
  • Washer: A type of fastener in the shape of a circular ring, placed between the nut, bolt, screw and support;
  • Back-up ring: plays the role of preventing the movement of parts on the shaft or hole;
  • Pin: Mainly used for positioning parts;
  • Rivet: A fastener consisting of a head and a shank. Used to connect and fasten two parts with holes and cannot be disassembled;
  • Assemblies and bolt connecting pairs: Assemblies refer to fasteners supplied in combination; bolt connection pairs refer to fasteners supplied in combination with special bolts and nuts and washers;
  • Welding nails: heterogeneous fasteners, fixedly connected to one part by welding method so as to be connected to other parts.

LILY Bearings also offers customized fastener services.

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Address: Room 301, 6st Block, #525 Yuanjiang Road, Minhang District, Shanghai, China

Creating value for customers is our core. Using this concept when serving customers, we will considering from the perspective of customers, rather than simply selling products. We provide customers with advanced services such as designing, model selection, pre-sales and after-sales services, using our professional knowledge and experiences in bearing industry over 20 years.

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