API 11B 7/8" full size Class SM sucker rod couplings

Yantai Yunsheng supply API 11B 7/8" Full Size class SM sucker rod coupling
Features & Specification of the Product
Materials  AISI 5140
Size  7/8 Slim Hole Spray Metal Coupling
  O.D.(IN): 1 13/16
 I.D. (IN): 1 3/16
 Length(IN): 4
 Weight(kg): 0.74
Accessories  Yunsheng Catalogue.pdf   Yunsheng Couplings.pdf
Product List-Sucker Rod Couplings.xls
Paramater of coupling perfomance 
  Smoothness:  3.1×10-3
  Coat Thickness(in): 0.01in ~ 0.02in
  Basic hardness: HRC 16-23
  Surface Hardness: HRC 50-65
  Intergrate intension(Mpa): 484
  Hole rate: 2%
  Min. Hardness of the layer: 595HV0.2
  Min. Bongding stength: 655 Mpa
  Operating Temperature: -1000~400
  Life: > 180 days
Packing Wooden Case, 1000pcs each case (customered logo), with 3 layer.
Wooden Case Inner Size 1180×690×330mm
Delivery Period Within 15-20 days upon our receipt of buyers 50%T/T PREPAYMENT
for 3000 pcs.
Payment  50% T/T deposit in advance, the balance paid against the B/L Copy
Conveyance 20 container 30000 pieces
 40 HQ container 45000 pieces
Unit Price: FOB Qingdao/Tianjin USD7.5 (need our futher discussion)
Minimum Order quantity: 1000PCS

Sizes of Other sucker rod couplings:
,

      Rod Size
      IN.(mm)Slimhole OD
      IN.(mm)Fullsize OD
      IN.(mm)Length
      IN.(mm)
      5/8 (16)1 1/4 (31.75)1 1/2 (38.10)4 (101.6)
      3/4 (19)1 1/2 (38.10)1 5/8 (41.28)4 (101.6)
      7/8 (22)1 5/8 (41.28)1 13/16 (46.04)4 (101.6)
      1 (25)2 (50.80)2 3/16 (55.50)4 (101.6)
      1 1/8 (29)----2 3/8 (60.33)4 (101.6)

Foe more information, plaese do not hesitate to inform us at any time.

Email: nancy[at]ytyunsheng[dot]com
MSN:yunsheng_nancy[at]hotmail[dot]com