BowWorks Bowmaking Catalog
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SCREWS & EYELETS

Why can't I get an eyelet to fit this screw?

Standard Quality / 5-40 with Brass Eyelet

per 10

SELSQ1
Violin
20.50
SELSQ2 Viola 22.20
SELSQ3 Cello 23.5
per 5
SELSQ4 Bass, standard 4mm 32.75
SELSQ5 Bass, heavy 4.5mm 48.50
Highest Quality - 5-40
Stainless Screws, Bronze Eyelets
per 10
SELHQ1 Violin 90.00
SELHQ2 Viola 93.00
SELHQ3 Cello 108.50
per 5
SELHQ4 Bass, 4mm 100.00


SCREWS BLANKS WITH TANGS AND LEADS UNCUT
Without Eyelet

Half-threaded, half-unthreaded, total length 80mm. Allows you to control the length and position of the threads as well as the length of pilot and tang. Eyelets not included

Standard 5-40
Long enough for violin, viola or cello. Any of the 5-40 eyelets will work with these screws

per 10
SEBST5-40
Violin, Viola or Cello
19.75

Stainless Steel 5-40

SEBSS5-40
Violin, Viola or Cello
59.25

Titanium 5-40
Over 1 gram lighter

SEBTI5-40
Violin, Viola or Cello
86.00

Standard Course Screw Blank 32 TPI on a 3mm shaft
(use eyelets E1SEC1 or E1SECHQ)

SEBEC1
Violin, Viola
32.00

Standard Course Screw Blank 32 TPI on a 3.2mm shaft
(use eyelets E3SEC1 or E3SECHQ)

SEBEC3
Cello
32.00


EYELETS

Violin Brass
Per 10
E1S54 5-40 threads, standard shank 11.50
E1T54 5-40 threads, thick shank 14.00
E1S00 without threads, standard shank 11.50
E1T00 without threads, thick shank 14.00
E1SEC fits SEBEC1 50.00

Violin Bronze

E1S54HQ 5-40 threads, standard shank 45.75
E1T54HQ 5-40 threads, thick shank 53.75
E1S00HQ without threads, standard shank 45.75
E1T00HQ without threads, thick shank 53.75
E1SECHQ fits SEBEC1 87.50

Cello Brass

E3S54 5-40 threads, standard shank 12.80
E3T54 5-40 threads, thick shank 17.00
E3S00 without threads, standard shank 12.80
E3T00 without threads, thick shank 17.00
E3SEC fits SEBEC3 65.00
Cello Bronze
E354HQ 5-40 threads, standard shank 54.60
E3T54HQ 5-40 threads, thick shank 64.20
E3S00HQ without threads, standard shank 54.60
E3T00HQ without threads, thick shank 64.20
E3SECHQ fits SEBEC3 98.50

Bass

per 5
E440 Brass, standard 4mm 16.50
E440HQ Bronze, standard 4mm 56.20
E4HD Brass, heavy 4.5mm 24.00

Why can't I get an eyelet to fit this screw?

People often call and want to know where they can find an eyelet for such and such a screw. Or they want to know where they can buy a bunch of taps so they will always be prepared. The history of measurement standards really is a fascinating story, so I will do my best with the space and time available.

To start with, to have a standard thread you need to have a standard measure. In England King Henry did a good job in the 13th century using his body parts. These remained as standards until England went Metric in the 1960s. Although England was the exception, France also has inches and feet, along with other units, but no one could agree on whose foot to use, with every region and sometimes every village having it's own standards. This problem was made even worse in the late middle ages when the size of a man's foot was related to another, unrelated part of his anatomy, causing some Rulers to exaggerate and sometimes even outright lie about the size of their "foot", until, finally all Rulers claimed to be 12 inches-- a claim not supported by modern science-- So, During the French Revolution it was ordered to find another standard, a "natural one." They decided to take the distance from the North Pole to the Equator (as it passed through Paris, of course) as best as it could be measured in those days and then take one ten-millionth of that and call it the "Metre" The metric system was discarded in France in 1812, reinstated in 1840 with most of Europe adopting it by the late 1870s. This did not mean that trades people threw out their old measuring or thread-cutting tools at that time. It should be kept in mind that adopting a system of measurement is different from wide-spread acceptance and use. Meanwhile, back to the screw-thread.

In the mid-19th Century almost every factory and manufacturer had it's own design of screw thread and, consequently, fasteners were often made specially for the job at hand. This meant that compatibility and interchangeability between companies was just about non-existent. The first standardized threads were introduced in 1841 by Sir Whitworth and were based on the English Foot and inch system. In 1864 an American, totally agreeing with Sir Whitworth about the need for a standardized thread, introduced his own, again based on the inch-foot, the SAE or American Standard. By 1884 in Britain the Whitworth fell to the BA thread. It wasn't until 1947 that the ISO was created to standardize the Metric thread. In 1966 the BA was discarded in favor of the Metric standard. Oops, almost out of space, But I think you are starting to get the idea.

All prices in US Dollars.
All prices subject to change without notice.

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Bow Making Supplies
PO Box 263, Little River, CA 95456
Phone: 707-937-0570
U.S. Toll Free: 866-834-0425
Call any time & leave a message
Fax: 707-937-0570

BowWorks sells all of the materials needed to make bows for stringed instruments.
If you are a bow maker, bow restorer, or practice the craft of bowmaking as a hobby,
BowWorks has the materials you need.
Steven Beckley makes fine violin bows, viola bows and cello bows.

This web site and all of it's content, text and images, are copyrighted.
Copyright © 1986 - 2008 Steven Beckley
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