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Serving Material
No. 3D End Serving
Small diameter available from three-ply twisted Dyneema® or Spectra material. Highly recommended for end servings. Servings should be tight but flexible. See available colors.

Approx. breaking strength / diam: 65 lbs/.017"
Approx ft/lb : 9500
Spool sizes: 1 lb / 120 yd. jig
008 Serving Thread 008 Spectra Serving Thread
  • Small diameter fits well in all mainstring and cam grooves
  • Tough and durable
  • Grips well
  • Offered on 150 yard Jig spools
    1/4lb spools and 1 lb spools
    (Approx 18,000 ft per lb)
  • Available in black or white
  • More economical due to twisted construction
No. 2X End Serving
100% Dyneema® or Spectra- the smallest diameter. Fits snugly into wheel tracks and covers areas on strings and cables needing protection from abrasion. See available colors

Approx. breaking strength / diam: 50 lbs/.015"
Approx ft/lb : 14,200
Spool sizes: 1 lb / 150 yd. jig
No. 2S End Serving
2 ply Spectra- tough and durable. See available colors

Approx. breaking strength / diam: 60 lbs/.018"
Approx ft/lb : 9000
Spool sizes: 1 lb / 100 yd. jig
Serving Spools No. 62XS Serving
20% stronger and more durable than standard black and white serving due to a higher percentage of Spectra or Dyneema®. Grips well. Standard color is black. See available colors.

Approx. breaking strength / diam: 57 lbs/.018"
Approx ft/lb : 7220
Spool sizes: 1 lb / 100 yd. jig

Approx. breaking strength / diam: 67 lbs/.021"
Approx ft/lb : 5810
Spool sizes: 1 lb / 75 yd. jig

Approx. breaking strength / diam: 86 lbs/.025"
Approx ft/lb : 3570
Spool sizes: 1 lb / 60 yd. jig

No. 62 Braided Center Serving
Original blend of Spectra / Dyneema® and polyester. Grips well. Standard color is black and white. See available colors.

.018" spool sizes: 1 lb / 100 yd. jig
.021"spool sizes: 1 lb / 75 yd. jig
.025" spool sizes: 1 lb / 60 yd. jig
Halo Serving Material Halo Serving
100% tightly braided Spectra suitable for end or center serving. Highest durability. .007" and 014" white turns clear when wound tightly. See available colors.

Approx. breaking strength / diam: 35 lbs/.007"
Approx ft/lb : 38,000
Spool sizes: 1/4 lb / 150 yd. jig

Approx. breaking strength / diam: 45 lbs/.014"
Approx ft/lb : 14,000
Spool sizes: 1 lb / 120 yd. jig

Approx. breaking strength / diam: 75 lbs/.017"
Approx ft/lb : 7000
Spool sizes: 1 lb / 100 yd. jig

Approx. breaking strength / diam: 100 lbs/.019"
Approx ft/lb : 5750
Spool sizes: 1 lb / 75 yd. jig

Approx. breaking strength / diam: 115 lbs/.021"
Approx ft/lb : 4900
Spool sizes: 1 lb / 75 yd. jig

Approx. breaking strength / diam: 160 lbs/.024"
Approx ft/lb : 3750
Spool sizes: 1 lb / 45 yd. jig

Approx. breaking strength / diam: 215 lbs/.030"
Approx ft/lb : 2850
Spool sizes: 1 lb / 40 yd. jig
Polygrip Center Serving
100% Polyester; grips very well. Available in Black / White.

#1 Black / white:
Approx. breaking strength / diam: 35 lbs/.020"
Approx ft/lb : 4600
Spool sizes: 1 lb / 75 yd. jig

#2 Black / white:
Approx. breaking strength / diam: 50 lbs/.025"
Approx ft/lb : 3600
Spool sizes: 1 lb / 60 yd. jig
400 Nylon Multifilament End Serving
The traditional end serving; also used for nock points and peeps. See available colors.

Approx. breaking strength / diam: 30 lbs/.017"
Approx ft/lb : 6200
Spool sizes: 1 lb / 100 yd. jig
350 Nylon Braid Serving
Small diameter traditional end serving. Also used on FITA bows. Available in popular solid colors.

Approx. breaking strength / diam: 15 lbs/.015"
Approx ft/lb : 9500
Spool sizes: 1 lb / 125 yd. jig
Crossbow Serving
Braided Spectra; tough and very durable. Available in popular solid colors only. Stocked in Black and Brown.

Approx. breaking strength / diam: 175 lbs/.030"
Approx ft/lb : 2800
Spool sizes: 1 lb / 45 yd. jig
Nock Spools Nock Point and Peep Tying Thread
100% high tenacity nylon, bonded to improve abrasion resistance. Will not fray when cut. High strength, weather resistant. Available in red or black.

Approx. diameter: .020"
Spool sizes: 75 yd. jig spool
Majesty Serving Majesty Serving
90% Dyneema®, 10% polyethylene. Tough and durable; tightly braided to stay rounder and resist slipping and separations. Available in black.
.015" diameter: 131 yd. jig spool
.018" diameter: 109 yd. jig spool
.021" diameter: 87 yd. jig spool
.026" diameter: 66 yd. jig spool
Bowstring and Serving Material Recommendations
Bowstring Recommended
Center Serving*		 Recommended
End Serving
Trophy 62XS or Halo 3D or 2X or Halo .014
452X 62XS or Halo 3D or 2X or Halo .014
450 Plus 62XS or Halo 3D or 2S
8125G 62XS or Halo 3D or 2X or Halo .014
8190 62XS or Halo 3D or 2X or Halo .014
Force 10 .030 crossbow center serving or Halo .030 2S or 3D
DynaFLIGHT 97 62XS, Halo or 62 2S or 3D
652 Spectra
(primarily recurve bows) 		62 2S or 3D
B55/B500
(recurve bows) 		Polygrip or Halo 400 Nylon or 2S

    * Center serving size depends on the number of strands of bowstring
1) No. 62 XS Braid .018 is occasionally used as an end serving on all types of string material; it grips very well.

2) Halo Serving: recommended on any string material as a center serving where increased durability is required. It is often the preferred choice of finger shooters. It is extremely tough, but a little more difficult to hold in place. It can also be used as an end serving on recurves, again where high durability is required.

3) The recommendations are basic guidelines. The main factors being considered are:

" Nock fit " Arrow speed " String durability

4) Use any good synthetic wax on BCY"s bowstring materials (silicone blend recommended).

BCY manufactures and supplies products in accordance with these specifications. If used correctly, the material will serve the purpose for which it was intended- a bowstring or as a serving material. All products we manufacture are extensively tested. We offer a full range of material for the archery market. There are many variables which can significantly effect performance of the bowstring material. Some examples include: Number of strands and/or of twists, type of serving material, tightness of serving material, width of cam grooves on bow, amount of lubrication, type of release, condition of cam wheel, yoke system on cables, degree of string maintenance. As BCY cannot control these variables, BCY cannot accept responsibility for problems arising from strings, cables or servings.

Dyneema® is a registered trademark of DSM
Spectra is a registered trademark of Honeywell