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Ultra-Drive Countersunk Security Machine Screws

Ultra-Drive Countersunk Security Machine Screws offer one of the best security solutions on the market, designed with an oversized internal pin and a unique shaped drive system.

No ultra drive is the same. Once a drive has been assigned to a customer, it is given a unique reference code which is stored in a secure database. This provides full traceability and ensures that each design is exclusive to the purchasing customer.

Any customer wishing to purchase additional screws or drive bits would need to quote their unique reference code for authentication.

Tamper-Proof Ultra-Drive Countersunk Security Machine Screws are specifically designed for applications that demand the highest levels of protection against tampering and theft.

The countersunk head allows these fasteners to sit flush with the surface for an aesthetic finish, while the reusable two-way drive makes them ideal for applications where maintenance is required.

Due to the nature of the product, Premium Ultra-Drive Countersunk Security Screws are manufactured to order – typically supplied in Steel, A2 Stainless Steel or A4 Stainless Steel.

Available to order at Fastenright in thread sizes M2 to M16, with lengths up to 120mm. UNC threads can also be supplied. The full range of Ultra Drive Screws can be found here.

Please note that there is a minimum order quantity of 1,000 screws per size.

Ultra Drive Countersunk Security Machine Screws Technical Drawing

Imperial Sizes

Metric Technical Data & Availability
Thread
Diameter (d)
M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16
dk (mm)
min. – max.
4.0 –
4.4
4.3 –
4.8
5.4 –
5.7
7.24 –
7.6
9.14 –
9.5
10.07 –
10.5
13.57 –
14.0
17.07 –
17.5
20.48 –
21.0
27.48 –
28.0
k (mm)
min. – max.
1.0 –
1.4
1.3 –
1.5
1.43 –
1.65
1.95 –
2.2
2.5 –
2.75
3.0 –
3.3
4.05 –
4.4
5.2 –
5.5
6.24 –
6.6
8.44 –
8.8
Available
Lengths (L)
M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16
4mm black icon image black icon image black icon image
6mm black icon image black icon image black icon image
8mm black icon image black icon image black icon image black icon image black icon image black icon image
10mm black icon image black icon image black icon image
12mm black icon image black icon image black icon image black icon image black icon image black icon image
14mm black icon image black icon image black icon image
15mm black icon image
16mm black icon image black icon image black icon image black icon image black icon image black icon image
20mm black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
25mm black icon image black icon image black icon image black icon image black icon image black icon image black icon image
30mm black icon image black icon image black icon image black icon image black icon image black icon image black icon image
35mm black icon image black icon image black icon image black icon image black icon image black icon image
40mm black icon image black icon image black icon image black icon image black icon image black icon image black icon image
50mm black icon image black icon image black icon image black icon image black icon image black icon image black icon image
60mm black icon image black icon image black icon image black icon image black icon image
70mm black icon image black icon image black icon image black icon image
80mm black icon image black icon image black icon image black icon image
100mm black icon image black icon image black icon image black icon image
120mm black icon image black icon image
black icon image = Available

 

Imperial UNC Technical Data & Availability
Thread
Diameter (d)
2-56
UNC
4-40
UNC
6-32
UNC
8-32
UNC
10-24
UNC
12-24
UNC
1/4″-20
UNC
5/16″-18
UNC
3/8″-16
UNC
1/2″-13
UNC
5/8″-11
UNC
dk (in.)
min. – max.
.168 –
.197
.218 –
.255
.263 –
.307
.311 –
.359
.359 –
.411
.405 –
.425
.480 –
.531
.600 –
.656
.720 –
.781
.872 –
.938
.970 –
1.112
k (in.) .064 .083 .097 .112 .127 .155 .161 .198 .234 .251 .324
Available
Lengths (L)
2-56
UNC
4-40
UNC
6-32
UNC
8-32
UNC
10-24
UNC
12-24
UNC
1/4″-20
UNC
5/16″-18
UNC
3/8″-16
UNC
1/2″-13
UNC
5/8″-11
UNC
3/16″ black icon image black icon image
1/4″ black icon image black icon image
5/16″ black icon image black icon image
3/8″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image
7/16″ black icon image black icon image
1/2″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
5/8″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
3/4″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
7/8″ black icon image black icon image
1″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
1 1/4″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
1 1/2″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
2″ black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image black icon image
2 1/2″ black icon image black icon image black icon image black icon image black icon image
3″ black icon image black icon image black icon image black icon image
3 1/2″ black icon image black icon image black icon image
4″ black icon image black icon image black icon image
5″ black icon image black icon image black icon image
black icon image = Available

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