E26 Porcelain Lamp holders:

E26 F331 lamp base specifications Specification:

Unglazed porcelain body on E26 medium lamp base lampholder with threaded male, threaded female
Standard lead types are AWM 18 gauge 1050 1250 1500
plastic insulated wire.
(Bare copper ground wire available upon request.)
Standard screw shells are aluminum.
(Brass and nickel plated brass available at extra cost.)
Bracket types available are listed on page B7.

Standard packed 200 to a carton.
Spring center contact
Keyless, commercial grade, rated 660W/250V
Medium base - fits standard incandescent bulb bases
Straight body with screw terminals on bottom
E26 lamp base Dimensions: 1.5" overall diameter ("A" dimension in diagram); 2-1/16" overall height; and 1.69" body height
0.03" insulating washer
1/8 IPS threaded metal cap (27tpi)

Advantages:

1.First choice

2.Our price: very competitive, and very high quality.

3.Delivery time: 25 working days when received down payment

4. Payment:30% T/T, balance against copy of BL(or TT balance)

5.Certificate: ISO9001&CE&UL&VDE

6.Free samples and good service