UPDATE 2-Strike to cost Northam 1,000 oz in daily output

* Union demanding 15 pct wage rise, Northam offers 8 pct

* Exxaro, NUM negotiators not yet agreed pay deal

* Strike to cost Northam 9 million rand per day

(Recast with losses, adds details, shares, analyst)

By Shapi Shacinda

JOHANNESBURG, Sept 6 (Reuters) - Northam Platinum (NHMJ.J: Quote) said on Monday it would lose 1,000 ounces in daily output of Platinum Group Metals (PGMs) after the majority of its workers went on a wage strike, the latest to hit South Africa.

Northam, one of South Africa's smaller platinum miners, said 80 percent of its 6,800 employees at the Zondereinde mine started the strike on Sunday, shutting the entire operation.

South Africa, the continent's biggest economy, has been hit by a wave of strikes and strike threats in both the private and public sectors, which have led to above-inflation settlements and stoked fears that the cost of living will rise.

The Northam workers, members of the National Union of Mineworkers (NUM), are demanding a 15 percent wage rise after rejecting an offer of an 8 percent pay increase in a two-year deal.